creamfilledkittytitties11/11/2018
For a first date, things had been going... Well, to put it simply, great. Sure, it might have taken place in a garbage dump and Undyne might have thrown her dating partner in a trash can, but once you got past that it had been a really wholesome evening. Alphys, the cute little lizard, had even invited her back to her lab and if Undyne read the signs right it meant staying the night. She had already gone upstairs to Alphys' bed (after almost slipping on the conveyor belt put in the floor), sat down on it and taken off her jacket. Being a royal guard was hard work, especially with all the chasing she had been doing lately, so taking some time off would be a really good way to back in the game.

But that did not mean she wasn't gonna get sweaty. Alphys had gone down to lock the door, so she took the opportunity to slip out of her clothes as she waited. First her pants and underwear, but instead of a bra her chest was constricted by a binder, one which she very happily undid. While her breasts had looked like DDs with the binder on, as she pulled it off they looked immediately swelled up!  Her tits went down all the way to her groin, each two feet in diameter with a large amount of weight to them. She quickly caught them and the soft flesh draped over her hands like dough; no wonder she needed to keep something like that under wraps while working. Another thing to note were the large, dinnerplate-sized areola puffing out from them, with inverted nipples that looked like horizontal slits. Her hands gently stroked her enormous mounds up and down, sighing contently as she waited for her new girlfriend to come back and see.
ask-cockanaya11/11/2018
Oh jeez had today been quite the adventure. Not only had she got to see a human up close but she got to DATE Undyne? Well start dating her at least. A garbage dump wasn't the best place to take a lady like her. And so Alphys was currently flitting about the lower level of her lab to lock the door and make absolutely sure she'd have no interruptions. Once she was absolutely, positively sure she had everything taken care of she ran her way back upstairs, nearly tripping on her coat and the moving floor. As she stumbled through the door she decided, perhaps foolishly, to try and do a pose for Undyne. Leaning against the frame she arched her back in such a way to show off her above average chest, white lab coat falling to the sides of her orange cleavage. But she didn't get to say anything to accentuate it as, the second she actually looked into the room, her eyes went wide and jaw was slack.

"+U-U-UNDYNE?!" Was all she managed to yell out as she trotted her way into the room, her tail swishing back and forth with each step. Her eyes were, of course, locked right onto those massive blue mammaries. That of course meant she wasn't paying too much attention and ended up falling face first into Undyne. Or, more specifically, her valley of cleavage. It took her a few seconds to even realize what happened, a deep blush on her face as she looked up at the fish girl's eyes. Sputtering and shaking she frantically pulled herself out and crossed her legs, clutching at her coat. "+I-I'm sorry but... I didn't e-expect this! N-not at all. Y-you're humongous, Undyne."
creamfilledkittytitties11/14/2018
As Alphys entered Undyne immediately smiled, going so far as to say "Ooo!" at the seductive pose, even if it failed immediately. Despite Alphys gawking and sputtering she couldn't help but to grin, gently cupping her chest from below and lifting it up while the lizardess approached. "What, never seen a pair of tits before?" Her cockiness disappeared though when she realized that Alphys wasn't stopping and before she knew it she had her right between het breasts, sinking into her cleavage. "H-Hey I know they're good but no need to dive headfirst into them!" She helped part the massive orbs so that Alphys could slip back out, quietly giggling to herself at how adorably silly she was. "It's fine, dummy. And yeah, I know, it looks pretty good on me don't it? I try not to show 'em when I'm out and about, but luckily a bit of monstet magic can keep them concealed. Bet ya can't wait to put your grubby claws on them huh? " Unlike Alphys, Undyne definitely had the confidence to pose, winking seductively and slowly starting to knead the huge teal orbs.
ask-cockanaya11/14/2018
Just as before Alphys just stared on in awe at how big Undyne was, especially when she got to take a step back and fully appreciate how big they were. Having just felt them she knew they were as soft and pliable as dough. That was confirmed even harder when Undyne started to play with her giant tits. Alphys' mouth curled into a smile as she watched, taking a step forward, clutching at her coat still. "+T-they look great on you! W-w-well they'd look great on anyone but especially on you." Giving her an awkward smile she bent down a bit to get a closer look at the humongous breasts, her eyes catching something. Namely those equally huge, puffy areola, each one big enough to be a dinner plate, capped with bulging slits. "+W-w-wow! Your nipples are..." Alhpys' voice trailed off as she reached forward and grabbed handfuls of Undyne's titflesh, squeezing and kneading what she could, paying special attention to her swollen nipples. "+Y-you should definitely let people see these. C-can you i-imagine the look on the KING's face if he knew you w-were lugging these around?" For emphasis Alphys hooked her hands underneath Undyne's chest to try and heft it up. Only she didn't really move anywhere, just groaning as her hands pressed on the underside of Undyne's bust, her face turning red from effort.
creamfilledkittytitties11/14/2018
Undyne cooed happily as Alphys fingers pressed into her soft titflesh, letting go herself so that the other had free range to knead her large knockers. Every now and then Alphys squeezed her areola, causing a tiny gasp or chirr as a spark of pleasure ran down her spine. The comment about the king seeing her like this made her start laughing, petting Alphys's head while trying to contain herself. "Asgore? Seeing me like this? He'd probably never leave his throne room if he knew I had tits like these!" Watching the yellow lizard try to lift her chest she only giggled, eventually helping by hefting up her breasts. "Come on, they're not that heavy. Oooh are you blushing? You're such a dork. If you dig your fingers in deep enough I'm sure you'll find something else to poke at..." Enough teasing. Undyne could go on all day about her own body but she wanted Alphys feeling neither inadequate nor distracted. Leaning forward she took a hold of the neck of the labcoat, getting a good grip. "But I think you were trying to show me something when you were coming in here, weren't you?" she murmured, slowly sliding down the fabric to reveal Alphys' breasts again. She smiled widely as she saw them but she didn't stop, trying to go even further... Only to be met by the rest of the coat being buttoned. No matter, just to rip it wide open then!
ask-cockanaya11/14/2018
Alphys giggled as well as she thought about the look on Asgore's face if Undyne were to whip out her giant tits in front of him. Still her more pressing matter was the tits themselves, not who they should be shown too. Her hands continued to squeeze and work at the titanic blue boobs until she felt Undyne's hands start to go for her coat. For a moment she just let her do her thing, Alphys' smaller orange chest flopping out, but then she hit the buttons. Alphys had a worried look in her eye and almost protested about moving forward but, alas, Undyne was too quick for her words. The white lab coat was practically shredded in Undyne's strong hands and tossed to the side, leaving Alphys standing mostly bare. However what she was wearing would definitely catch Undyne's eye. Especially when the nervous lizard climbed up onto the bed to step out of her destroyed coat. Wrapped around Alphys' broad hips was a pair of bright blue boxers with the front of them bulging obscenely, a few tears visible on various parts of the fabric. Accidentally Alphys ended up nudging her bulge against Undyne's face as she stood next to her, a nervous smile on her own face. "+S-s-sorry."
creamfilledkittytitties11/14/2018
Now it was Undyne's turn to gawk, looking down between Alphys legs in astonishment as she saw what the other packed. The shorts were clearly too small for her as it looked like someone had stuffed a watermelon into those shorts, a massive bump straining the fabric to its limit. She hadn't realized she was leaning closer until Alphys stood up on the bed, lightly pressing the package against her face. "U-Uhm... Wow." she said incredulously, shifting her eyes between Alphys face and the crotch in front of her face. "You say I'm humongous, and then you look like this?" The shorts were being stretched both in the front and back from Alphys' sizable ass, and now Undyne's interest was piqued. "... Well, if ripping off your coat worked /this / well..." Turning to face Alphys fully, she kept her eyes on the bulging crotch with a grin. "... Then I guess we can try it again!" With speed belonging to a warrior she snatched Alphys pants and, once more, ripped them off directly. It was much easier this time since they were already under much strain but the result was much, much more significant.
ask-cockanaya11/14/2018
It wasn't often that Undyne looked surprised about something so Alphys soaked in that response with no shortage of delight. Especially since now, outside of her restrictive jacket, she was starting to feel a bit more... free. "+Y-yeah. I should have told you sooner, huh?" As she spoke the couldn't help but nudge her bulge continually against Undyne's face. She wanted to say it was because she was finding her footing on the bed but, deep down, she knew it was something else. Her bulge twitched visibly as she listened to Undyne's plan with a mix of apprehension and desire. Before she could ask her to just tug the underwear down it was already in shreds and Alphys groaned deeply.

As the fabric fell to the floor her shaft swung forward and smacked Undyne right in the face. Alphys barely even noticed as she threw her head back in bliss. It was an obscene log of a cock, easily as thick as one of Alphys' thighs. It twitched eagerly as the musky, foreskin covered tip pressed against Undyne's face before slowly sliding off and landing in her valley of cleavage. The foreskin was slowly pulling back as Alphys became more and more aroused. But something else might catch Undyne's eye. Namely the absolutely monstrous testicles attached to the base of Alphys' cock. They each had to be nearly as large as one of Undyne's tits and were just as soft, sagging and landing against the fish monster's bust before sliding down into her lap, squished in between Alphys' legs. "+Mmm! It's always s-so nice to let it out."
creamfilledkittytitties11/14/2018
Undyne did not have the wherewithal to dodge the incoming dick, ending with her getting a slap right across the cheek. It stayed there for a moment before sliding down, giving her ample of time to process what she had revealed before her. Calling the cock thick would have been an understatement and she even got to see it grow right in front of her, gently throbbing as it got used to its freedom in her cleavage. Of course a massive dick would have a massive pair of balls to it but even Undyne was surprised by how large they were as she looked down. She could feel how warm they were as they pressed against her tits, hinting to the obscene volumes of virility inside of them.

"I-I... I'm..." It took a lot to make the royal guard captain stutter and this certainly qualified. "It's huge." she finally blurted out, nevermind the fact that she was stating the obvious. "All of it, it's just... massive." She pulled back some hair that had gotten in her face from the dickslap, realizing that she had a body she could control which made her gently place her hands on the saggy ballsack. "Really! You said I was huge and now you're packing balls that rival my breasts!" The fact that the cock was resting right in her cleavage was not lost on her and she blushed furiously, clearly never having been a position like this both figuratively and literally.
ask-cockanaya11/14/2018
Hearing Undyne just bluntly say it's huge had Alphys snickering, placing a hand on the base of her thick cock. She stroked at it absentmindedly, each little motion making it twitch and swell. "+It is a little big I'll admit." The thick orange skin of her cock bulged as she got harder, a dull moan escaping her lips. A small, for her, dollop of pre-cum squirted into Undyne's cleavage and coated the entire area next to the dark orange head. When Undyne's hands grabbed at her sack she was rewarded with another dollop, Alhpys jerking her hips forward and pressing the drooling tip to the fish monster's face. All so she could arch her back and look behind herself of course. "+Y-yeah they're pretty huge! You wouldn't imagine what I've got to do when I want to cum." As she said that her cockhead peeked further from her foreskin, now staring Undyne directly in the face. Alphys' hips were slowly rocking back and forth as she stared at her own balls, loving the feeling of Undyne's tits against her cock as well as the compliments.
creamfilledkittytitties11/14/2018
Having both an enormous cock in between her breasts as well as poking up towards her face was an invitation that Undyne wouldn't be able to turn down. The fact that Alphys, usually so shy and timid, had even started to grind against her only egged her on to grab her own tits, slowly rolling them against the turgid shaft. "Lucky you that you got me now!" she said with a giggle, her own nervousness starting to disappear in favor of naughtiness. "I think your cock will fit perfectly with me, hehe." She pushed her tits up higher and Alphy's dick in turn, letting her tongue roll out of her mouth to drag across the cockslit only to get a glob of precum squired out all over it. "Damn!" she said after pulling her tongue back in. "You sure let out a lot of precum, don't you? Well I guess with balls like that, I shouldn't mind.~ Hang on, I just gotta do a thing. But eh, don't laugh." She leaned her head back and, with a subtle click, the large fangs taking up most of Undyne's lips folded back into her mouth. "I... think I look pretty stupid like this. But on the other hand if I don't, I won't be able to..." With a wink she went back to servicing the head, even going so far as giving her opening a big, mouth open kiss.
ask-cockanaya11/14/2018
Alphys just smiled broadly as Undyne wrapped her tits around her shaft, soon shivering a little. They were a little cool what with her being a fish but oh so soft. She clenched her fists gently before grabbing a handful of titflesh as well, squishing and kneading the blue bosom. "+I s-sometimes need to use a mop to clean up all the pre-cum after, uh, masturbating." It was a little awkward to talk about this but considering how Alphys usually was? This was definitely an improvement. When Undyne's mouth got involved Alphys gasped sharply and grabbed tighter onto the fat tits, squishing them harder around her shaft. The moment her lips pressed against the urethra it gushed open and fired a rope of pre-cum into and around Undyne's mouth. What wasn't fired directly down her throat would bulge out her cheeks immensely. And what didn't end up in her mouth coated her entire face, strings of pre-cum dribbling off of her fins. Alphys just let out a small "+Sorry." before her cock got to spewing again, launching a few more ropes directly into the fish monster's waiting mouth. All the while Alphys' cock just pulsed and swelled, soon pressing against Undyne's mouth without any thrusting.
creamfilledkittytitties11/14/2018
Alphys was just full of surprises today! Much like Undyne's mouth got full with the strong taste of her precum, a quick "GLRK!" being drowned out by the sticky fluid forcing its way down her throat. Undyne, not knowing what else to do, swallowed what she could and pulled back. That meant the rest of the precum spewed into and around her mouth, a lot dripping down onto her tits below. "Alphys you-" Before she could continue she had the cock against her lips again, mouth filling with a new load that had her gagging from how sudden it was. "You fire quickly!" she managed to cough out, but if anything Undyne was a being full of determination and so she pressed her lips back up against the slit, readying her throat while her hands roughly kneaded her chest against Alphys' shaft. It couldn't be that bad, could it?
ask-cockanaya11/14/2018
A deep, needy groan came from Alphys as Undyne's lips wrapped around the tip of her cock. This was a lot more than she'd ever done with anyone else, much less someone with tits as big as Undyne's. That was definitely enhancing the experience. "+It shoots when it wants, heheh." She grinned down at Undyne as the fish girl renewed her mouth's grasp around the tip of Alphys' cock, getting rewarded with another thick salvo of pre fired down her throat. It was so much that she could feel Undyne gulping down the pre-cum. She needed more. Those massive, bouncing tits were wonderful but Alphys' eyes were drawn to Undyne's mouth, watching her tongue lick at her orange tip. A sheen comes over her glasses as her hands leave Undyne's boobs behind and grab onto the sides of her head. Without another word Alphys thrust her hips forward, watching in awe as Undyne's lips stretched wide around her tip. A titjob and blowjob was definitely the perfect combo. Her hips keep pounding back and forth, balls loudly smacking Undyne's tits, as she steadily forced her giant cock deeper. And, Undyne would note, it was still getting bigger, thickening up in her already stretched lips, salvo after salvo of pre-cum being fired into her gut.
creamfilledkittytitties11/14/2018
Undyne had been so focused on lapping at and kissing the head that she only managed a "Hm?" when Alphys took a hold of her head. The next moment her mouth was forced open, the taste of dick getting ever so strong from having the thigh-wide shaft brutally shoved down her gullet. Before she could respond in any manner Alphys had begun fucking her, quickly bottoming out in the back of her mouth. That did not seem to stop her however and Undyne's eyes went wide as she felt her pound the cockhead down into her throat. She could feel each shot of pre hit her belly and they did not seem any smaller now that they were being delivered directly into her. Her hands had to go down to the bed to steady herself giving Alphys free range to shove her cock in deeper, which she obviously did, leaving the fishgirl halfway down the shaft. The growing shaft, she noted between thrusts, her jaw straining more as it throbbed larger and larger and larger...
ask-cockanaya11/14/2018
Oh wow. She was handling this a lot better than Alphys had thought. Well it was Undyne after all. Turns out she was right in more ways than one about them being a perfect fit. Grinning she held firmly onto her fish girlfriend's head as she kept pounding away at her throat. What was once an already massive cock was now becoming obscenely huge for anyone, much less someone as short and stocky as Alphys, having gone from thigh thickness to nearly as wide as Alphys' waist. When Undyne was halfway down her cock Alphys let out another deep groan as she rammed her hips forward, seemingly not caring about Undyne's wellbeing as she forced two feet of thick cock down her throat in just a few seconds. She held her there tightly, now practically standing on Undyne's tits, as she made one inch humps against her mouth. The pressure against the blue bosom made her realize something. Even in this current position she was still getting a titjob from Undyne, Alphys' cock large enough to bulge out her torso into her cleavage, each hump and motion making those tits bounce around Undyne's stretched belly.
creamfilledkittytitties11/14/2018
Had Undyne not been forced to get onto her hands and knees she would have tried feeling the now visible bump in her stomach, if only because she couldn't see it herself with her head speared on Alphy's rod. But she could see its girth, the thing absolutely massive jutting out from the lizard's crotch. Her entire body felt like it throbbed in rhythm with it and she swore she could feel it gush its fluids into her belly. Alphys wasn't going to let her go without pleasure completely however, the feet pressing down on her tits causing shivers to run down her spine as it squeezed her fat areola. Luckily they were firm enough to support her, though it did mean she got to feel the huge yellow balls slap against her nipples with each thrust. She could see the other's crotch closing in which meant the end of Alphys' cock was in sight. The fucking however, judging from how roughly she was being pounded, had only just begun.
ask-cockanaya11/14/2018
Standing on Undyne's tits while thrusting away at her face was a bit of a precarious position but, well, there wasn't anything she could do about right now. Her throat just felt so nice and she figures Undyne might be mad if she stopped now. So why not keep going? That was what Alphys gladly did, still holding firmly onto Undyne's head as she fed her more and more cock. She could feel her gulping around her shaft every so often which made her shiver in delight. Her fingers drummed against Undyne as she kept pounding away until, finally, she felt her crotch hit those plump fish lips. Her balls followed soon after, smacking into her chest with enough force to nearly knock them over. Once she gets a good foothold again though she just starts fucking Undyne's face full force, not even waiting for her to adjust to the size. Moaning wantonly Alphys' balls noisily slapped into Undyne's chest over and over again, both huge orbs sloshing excessively. "+O-o-oh fuck is this nice, Undyne..." After she said that her hips picked up speed again, now looking like an orange blur as they slammed against Undyne's face. Each powerful thrust was accompanied by a gush of pre-cum deep into Undyne's belly, already bloating it to look like she was pregnant. At least it would look like that were Alphys' cock not currently fucking her like a jackhammer.
creamfilledkittytitties11/18/2018
Alphys was defying every single one of Undyne's expectations, constantly taking things to a new level instead of hesitating like she usually did. She groaned, or at least tried to, when Alphys' mammoth cock sheathed fully inside of her, feeling more stuffed than she ever before. And her massively endowed girlfriend was apparently going to change that as she immediately began to pound her face like crazy, so much so that even Undyne was taken aback. Her hands fumbled up to hold on to Alphys for support but all she managed was to grip the lizard's butt, sinking her fingers into the soft round orbs. Not that it stopped the other from thrusting, oh no. In fact it only made it easier now that she had two hands keeping her steady. Lewd wet noises accompanied every thrust and at that point Undyne was practically kneeling for Alphys, submitting fully to the waist-wide, bitchbreaking cock.
ask-cockanaya11/19/2018
When Undyne's hands grabbed onto her ass Alphys shivered happily and grit her teeth, rewarding her with a hard thrust forward. Her balls smacked against Undyne's chest like a pair of wrecking balls before sagging down. Not for long though. When she got over the touch she just got right back into slamming against Undyne's face, only this time with even more fervor. Her thrusts weren't nearly as fast now, though still nearly a blur, but she was hitting a lot harder now. Each smack nearly knocked Undyne off the bed, both from the force and the additional weight of Alphys' nuts. "+I'm... NNN!" She rammed forward and practically wrapped her thighs around Undyne's head as she held her in place, her monstrous cock spasming excitedly. It pushed deeper into the fish monster's guts before finally stopping its trail, finally fully hard. Now it was just twitching and shot rope after rope of sticky pre-cum into Undyne's insides. But then she started moving again, not wanting to leave Undyne out of the pleasure anymore, now yanking the girl's head against her crotch every time she thrust, each gurgle and splash of spit and pre-cum from her pounding like music to her ears.
creamfilledkittytitties11/20/2018
Any lesser monster likely would have passed out at that point and even if they hadn't keeping one's stand against Alphys' thrusts was hard for even someone as determined as Undyne. Her feet had dug into the mattress and her nails likely would have to had they not been desperately holding on to Alphys' ass. She tried to focus her eyes onto something but every second was accompanied by a new thrust, leaving her disoriented and overflowing with arousal as the enormous cock violated her throat. Then it suddenly stopped. Of course Undyne was locked against Alphys' crotch so she couldn't see why, but she could definitely feel each throb and rope of fluids being shot into her belly, stomach so gravid now that it squished out to the sides underneath her. And that wasn't even counting the enormous dick taking up volume. What Undyne thought would be the end of it however ended up not being the case as Alphys started right back up again! Her fingers pressed hard into Alphys' asscheeks as she tried to hold on but she became no more difficult to move back and forth, giving the lizardgirl plenty of leverage facefucking her.
ask-cockanaya11/20/2018
As wonderful was it was pounding Undyne's face Alphys couldn't help but feel she was missing something. Oh sure her throat was tight and hot and oh so wonderful as was dumping gallon after gallon of pre-cum inside of her, the sound of it splattering into her belly audible from the outside. That was when she noticed them again. Undyne's massive tits! Of course. Grinning down at Undyne she pat the side of her cheek before slowly pulling her mouth off of her cock. It was a long and hard process, understandably, and Alphys had to let go of Undyne's head not too long after she started walking backwards, instead holding onto her twitching shaft. The entire thing was coated in spit and pre-cum that ran off the sides like perverse rivers, dripping onto the floor. After nearly a minute of constant pulling finally Alphys' cock popped from Undyne's mouth, followed by a deluge of fluids, spit and pre-cum running like a faucet from her mouth. Giving her shaft a few more strokes Alphys plastered Undyne's poor, abused face with a few hearty ropes of pre-cum before angling her shaft down as best she could, coating the entire top of her chest as well as a good deal of the bed she was resting on. Sighing in delight she gave her cock a squeeze, the fat head swelling in front of Undyne's face, before she lightly rested it on her shoulder. "+I th-think it's about time I try out those tits don't you? Flip. Over." She pat her cockhead against Undyne's shoulders, a grin on her face as a few more ropes of pre-cum splattered onto her back.
creamfilledkittytitties11/20/2018
In the time it took for Alphys to pull her cock out the room it had taken up in Undyne's belly had been replaced with precum and then some, leaving her with an even larger cumgut. Even when it started to spew out around the shaft as it pulled out there was more going into the guard captain than pouring out. Finally the cockhead tugged free of Undyne's lips and immediately her the sticky clear goo started to gush forth, Undyne desperately trying to do something about the flow. Before she could do something however Alphys slinged a bucketload of precum all over her, glazing her head and tits in an excess of fluids that left her to simply limply lie down, more fluids pouring from between her loose lips. Every now and then she coughed until finally her throat was clear enough to form syllables and, after a few more mouthfuls coughed up, eventually words. "Y-You cum like... F-Fuck..." But Alphys showed no intention of going easy. Instead her voice only got sterner and Undyne, who was still reeling from the facefuck, had no other option than to oblige. Lying on her stomach was only making it harder to keep its contents in it after all, and so she slowly rolled over until she was on her back, looking up on the underside of Alphys' bitchbreaking cock.
ask-cockanaya11/20/2018
Watching Undyne's mouth gush out all that pre-cum made Alphys' dick throb in delight. Which, of course, shot out another rope of pre-spunk onto the mostly coated royal guard. She couldn't wait to see her fully coated in the stuff. "+Y-you think it's a lot now? Wait for when I really get started." A devious chuckle came from Alphys as her cock twitched again, the lizard girl leaning forward and grabbing onto Undyne's tits. Her fingers dug into the squishy, puffy areola, a finger or two probing at the slits sitting atop them. One hand pulled back to realign the massive orange cock, the shadow of it traveling over Undyne's face before slowly pushing its way into her bosom. All the pre-cum was making this a much smoother process, making Alphys moan gently in delight as, in what felt like no time at all, her shaft was fully sheathed in Undyne's chest. Even considering how ludicrously massive it was Undyne's tits met it in kind, covering a good deal of the monstrous shaft. It nudged against her swollen belly before squishing against it, providing a third slick surface to rub against. But Undyne wouldn't be able to see any of that. Alphys' colossal ass was now resting right above her head, the sweaty cheeks filling the air with a haze. Alphys clenched and unclenched them, each motion accompanied by a glob of hot pre-cum hitting Undyne's legs. Since she was perfectly content now Alphys sighed as she leaned back a bit on her heels, pushing Undyne's face into her ass crack. The fish monster would be greeted by a thick, wide, doughy ring of flesh in between Alphys' cheeks, each throb of the girl's cock making it twitch open and closed. "+You need a second? Because you're face isn't leaving for a while!"
creamfilledkittytitties11/28/2018
Alphys first comment didn't deserve a response, not that Undyne could give one seeing as she became too busy gasping as the lizard's digits dug into her tits. Having been rubbed into the bedsheets earlier her nipples were extremely sensitive at this point and having Alphys squeeze her areola and press her fingers into her inverted nubs caused a rush of pleasurable sensations down her spine. And it only got better as the log of a cock pressed its way in between her breasts. Undyne moaned as it slid along her cleavage, pushing against her bloated stomach and then starting to rock back and forth. She likely would have stayed in that state of mind, just enjoying her massive chest being used, had her girlfriend not stood up over her. The clapping, wobbling asscheeks were tantalizing to look at, distracting her long enough for Alphys to take a seat right on top of her face! Suddenly Undyne's face was pressing into the fat anus that presented itself, sliding in slightly only to be pushed back out thanks to the monsterdicked scientist's clenching. Meanwhile her entire lower body was being covered in pre-jizz, warming her nethers to levels of maddening arousal. "I'm fine!" she said, still reeling from the previous fuck yet now being presented with this new squishy donut, and with a determined groan she pushed through the incredulousness, grabbed hold of Alphys huge ass and pulled the lizard fully down onto her head.
ask-cockanaya11/28/2018
"+O-o-oh!" Alphys' spine arched as Undyne stuffed her face right into Alphys' anus. Her hands pulled off of her tits for a second, just grabbing at the air, before she grabbed onto them with renewed vigor, leaning forward a little to get a better grasp. It took her a few more seconds to actually get used to what was happening. It wasn't every day you had someone so brazenly eat you out, even yanking her hips back to meet her face. Though of course it wasn't every day you got to fuck someone like Undyne. "+W-well I'm happy you aren't worried about it." Groaning Alphys let herself fall fully back onto Undyne's face, sighing in delight. "+But I guess since you accepted my cock an asshole like that isn't too weird." As she spoke Alphys' pucker flexed against Undyne's face and mouth, practically kissing her back. Once she was sure she was good and comfortable there she got back to focusing on her chest.
Alphys bit her lip as she squeezed at the blue titties even harder than she had before, making her already puffy areola swell out even more. She dragged her thumbs along each of them before thumbing at the slits. Moaning softly she started to gently rock her hips back and forth. Each movement slid her sweaty pucker along Undyne's face while her imposing cock slathered her belly and legs in a fresh coat of goo. Her shaft twitched and bucked in between Undyne's tits and against her belly, Alphys' loving the tightness and softness of it all. She started moving just a bit faster, having already been wound up from fucking Undyne's throat, and was nearly lifting her ass off of Undyne's face every time. Luckily for the both of them Alphys' ass was big enough for that not to happen but each motion made her cheeks clap around Undyne's head, Alphys moaning in delight from the noise, hearing Undyne working on her donut while she pounded at her tits.
creamfilledkittytitties11/30/2018
Undyne was positively slobbering all over Alphys' fat asshole, even going so far as to return its depraved kisses with her own. She made sure to not allow Alphys to stand up or in any way remove the large cheeks from her head, doubling down on kneading the halforbs as much as she could. It seemed like as long as Alphys wasn't fucking her mouth Undyne would be able to keep up just fine, a thought that very much entertained the cocky guard captain. 

Meanwhile the rest of her body had been pretty much covered in the lizard's pre, glazing it with a shiny and sticky layer that made her scales gleam. It was constantly renewed as more spewed from Alphys' cock, even with her belly in the way that cushioned each thrust. Feeling the goo spew onto her body at such volumes made Undyne quip "Cum like a hose, don't you." quietly to herself, most of it being muffled by Alphys' ass and asshole. Every now and then she puffed out her chest for the lizard and rolled her hips up into the air out of instinct. The enormous shaft and the rest of the lizard was getting to her and Undyne entertained the thought of slipping one hand down between her legs just to relieve some of her own pressure.
ask-cockanaya11/30/2018
Luckily for Undyne Alphys had no desire to move her ass from her face. The closest she got was occasionally lifting herself just so she could grind her pucker against Undyne anew, the meaty, muscled ring grinding all along Undyne's face. Her hips continued to pound away at the massive set of teats, Alphys panting needily, her tongue lolling from her mouth. The belly rubbing against her shaft was wonderful even if it wasn't as good as her tits. Those were downright phenominal and Alphys wasn't sure she could go for anything else know. She'd need to get some sort of fake chest to fuck in order to get off now. Or just fuck Undyne every time she was horny. That seemed the more likely outcome. With her thumbs still rubbing at Undyne's nipples she couldn't help but try something she'd seen in her lewder animes. Namely pressing her thumbs into the puffy slits. It was hot and wet and oh so soft, making Alphys gnaw her bottom lip and slam against Undyne's chest harder for a few thrusts as she played with them. "+G-god I love your tits! They're so perfect, Undyne!" She gave them a hearty squeeze, pulling them into a hug as she started to pound away at them, rope after rope of translucent gunk splattering onto her lithe legs. It rolled off her in rivers and splattered noisily to the floor. But Alphys couldn't care, both because her floor was tiled but also because she couldn't focus on anything but Undyne right now.
creamfilledkittytitties12/04/2018
The moment Alphys sank her digits into her tits Undyne felt a burst of pleasure, her back arching and inadvertently pushing the fingers deeper. The thumbs were practically swallowed up by the inverted nipples and judging from how hard Undyne was holding on to Alphys she was loving every second of it. She did not care that the cock was spewing gallons of fluids onto her body, did not care that she was being pressed up against a large, puffy anus. The fishgirl needed more of that, ready to whatever would be necessary. The fat-bottomed lizard was pulled down hard onto her head just so that the large cheeks would muffle Undyne's scream of "Mmmmore!". Rolling Alphys booty against her she continued by repeating "Fuck me, fuck me,  fuck me, fuck me!!!" before letting go, immediately moving her hands to mash her tits together around the cock, kneading them like dough around the turgid yellow shaft. Whatever Alphys had found it clearly pressed Undyne's buttons, in more ways than one.
ask-cockanaya12/08/2018
"+W-woah!" When she was yanked back onto Undyne's face even harder she nearly fell over, having to throw herself forward atop Undyne's bosom to counteract it. And because squishing them with her whole torso provided just that extra bit of pleasure. Moaning she kept thumbing at Undyne's nipples before testing out another finger or two, grinning to herself. "+I guess your tits are greedy too?" Without missing a beat she thrust her fingers inside both of Undyne's puffy nipples. Probing inside was difficult while she was still thrusting away at Undyne's tits, threatening to knock them from her grasp nearly every time she thrust, but she manages. Her fingers flick and rub at Undyne's recessed nipples, Alphys letting out a little moan as she touches them. "+O-o-oh my god! This is so... LEWD!!!" At her yell Undyne's previous cry finally rings out in her ears, Alphys gritting her teeth as she gets to fucking her tits even harder, still grabbing at her nipples but lifting her ass up every time to get an even harder motion. "+NNN F-FUCK IS THIS GOOD!!!"
creamfilledkittytitties12/10/2018
The rough titfucking and the grinding of the asshole against her face would have been plenty enough for Undyne, but now with her nipples being fingered she could feel her loins tensing up ridiculously fast. Each thrust of Alphys caused her soft breasts to squish and send rivers of ecstasy down her spine. The heat between her legs was becoming unbearable, so much so that she couldn't stand it any longer without some sort of penetration. A finger or three would do, she thought, only to have her arms unable to reach thanks to Alphys nuts blocking the way. She endured several agonizing seconds trying to wiggle her arms past but the heavy gonads made it impossible. Not to mention how distracting everything Alphys did was, both physically and mentally. In her desperation she cried out "I NEED IT IN ME! FUCK ALPHYS, I NEED IT!" and, seeing as her hands couldn't reach down, they settled on the next best thing and squeezed the lizard's bloated nads. The next moment Undyne blanked as an orgasm wrecked through her body, cuntjuice squirting out from her nethers while her legs spasmed in bliss. She has gotten close before on her own but this was the first time she had orgasmed entirely from her tits, all thanks to Alphys.
ask-cockanaya12/13/2018
Alphys was panting and moaning loud enough to barely hear Undyne underneath her monstrous ass cheeks but she definitely felt those arms trying to squeeze their way around her balls. She couldn't help but giggle seeing just how horny Undyne was getting, biting her lip. Just as she was about to offer a solution Undyne's hands squeezed at Alphys' bloated nuts. The lizard monster's eyes went wide and she moaned as a fresh gush of pre shot from her cock like a hose. It only amplified when she felt Undyne squirt against her in much the same way, like a showerhead on the underside of her cock. Her hands kept squeezing Undyne's chest all throughout her orgasm, mostly because Alphys couldn't help but also to prolong it. Eventually Alphys became too aroused herself and let go, practically falling backwards off of Undyne's face, dragging her sweatys asshole over it before her massive nuts. The orange globes smacked into the ground as she was forced to stand now, panting heavily. Her cock was still covering Undyne's body so she took a few arduous steps backwards to free her, the massive log of a cock smacking against the floor as well. Panting heavily she only had one thing to say to Undyne as she stroked at her cock with both her hands, fresh ropes of pre-cum already firing from her. "+F-flip over."
creamfilledkittytitties12/14/2018
Undyne was lost in a world of orgasmic bliss, volumes of sticky goo being shot at her and the amazing sensation of having her sensitive teats squeezed. She did not even register squirting onto Alphys, only the aftermath as she and half the bed were plastered with the lizard's output. There was brief moment where she felt the asshole leave her face, only to be replaced by the heavy, incredibly arousing nuts, and then fresh air, if fresh air contained the combined scents of their sweaty bodies and Alphys overpowering cumsmell. It wasn't until Alphys ended up onto the floor that she started to come to, leaning her head back to look along the throbbing, still-spewing shaft at her lover. One could imagine that if they could, Undyne's eyes would be hearts at that point. "S-Still cumming huh?" she said in between ragged breaths, though she made a surprised noise as she looked back down and saw that Alphys was only covering the bed with her translucent pre and not actual jizz. "Wait, you're still only letting out pre? How backed up have you been?" While the output was insane Undyne had figured she'd at least have taken one loud in her belly and her titplay to prompt another, but so far all she could see around the bed was the same gooey precum. She wouldn't deny Alphys the command and so she laboriously rolled over onto her stomach again, still nuzzled up next to the fat log of a cock.
ask-cockanaya12/17/2018
There was a small bit of sadness to having Undyne flip over onto her belly. Mostly because now Alphys couldn't stare at her tits directly anymore but there was a wonderful visage of them squishing under her torso. She shot out another few ropes of pre-cum as she laboriously took a few steps backwards, dragging her heavy cock slowly off of the bed, letting Undyne get a feel for the fat length as it brushed past her. "+N-not too backed up. This is pretty, uh, normal for me actually." She could only let out a little chuckle as her cock slipped off the bed and hit the floor with a dull thud. "+I lied before. I use a lot of mops when I masturbate. Let me show you..." Stroking her shaft aggressively Alphys started to pant heavily. With her cockhead aimed right at Undyne's face she could only look her right in the eyes as she started shooting ropes of gooey fluid right at her. The first hit her face and splattered every which way followed by another and another. Moaning gently Alphys kept running her hands along her bulging shaft and hefted it up a little, making it wobble and shudder. She angled the spewing tip all around Undyne's upper half, still hitting her face every so often but mostly coating her shoulders and tits. Gnawing her lip she nudged her tip against Undyne's lips and shot a rope straight down her throat before taking a step back, strings of sticky pre-cum connecting the two before another shot broke them. "+Spin around. I want to cover the rest of you too."
creamfilledkittytitties12/17/2018
Having looked around Undyne was doubtful that this was a normal day for Alphys, gallons of pre having coated her and the surrounding area. Yet when the lizardess started to pull back, large globs spewing out the head as it slid along the bed, Undyne was starting to worry that it wasn't a joke. She had been given a large, wobbly gut of it after all and Alphys did not seem much worse for wear. "Show me?" The bloated fishwoman could only raise her eyebrows before the deluge began, pre splashing onto and over her face. It was like a shower but instead of water the fluid was thick, sticky and full of Alphys scent. She eventually had to open her mouth just to breathe, though of course that was taken advantage of and she got several mouthfuls of precum forced down her throat, the load large enough to make her throat bulge. Once Alphys pulled back she started to cough up some of the goo, cooing softly. "O-Oh fuck yes." Her whole upper body was feeling warm and fuzzy from the inch-thick layer of precum covering it, and she definitely wanted to feel that elsewhere. Spinning around was a bit difficult with her already large stomach but through some grit and powerful muscles she turned around, ass and cunt on display right in front of the throbbing behemoth of a cock.
ask-cockanaya12/18/2018
For a moment Alphys was worried that maybe she'd covered Undyne's face too much, her blue skin just barely showing through the thick layer of pre-cum. Though she couldn't deny how hot it was, turning her shaft to the side so she didn't cover it more.  When Undyne moaned out and slowly spun around Alphys bit her bottom lip and stroked her cock, watching those toned muscles heft around her chest and gravid belly. Okay she had to do it. She aimed her cock at Undyne's side as she moved, coating her side and back in the translucent fluid, even getting some of her other side as well. But it didn't take long before Undyne's ass was in view, Alphys biting her lip as she stared at those blue cheeks. She grabbed onto her cock and angled it in line with her pert rump and shot rope after rope of gooey fluid at it, quickly coating the blue cheeks in her juices along with the rest of Undyne's body. A few ropes smacked into the back of her head or landing on top of her squished tits but most landed on her ass, leaving it coated in over an inch thick layer of the sticky pre-cum. Once she was sure that her entire lower half matched her top she took a step forward and pressed her cockhead against Undyne's ass, the entire thing as wide as the girl's hips. Her tip rested right against Undyne's pussy but Alphys had another target. "+And now I'm going to return all that anal pleasure you gave me!" Taking a step forward her cockhead pressed against Undyne's asshole like a battering ram, the wide head spreading her cheeks apart. She pushed forward even through her cock's frantic spurting, slowly feeling Undyne's asshole give way to her monstrous monster cock. Once the tip was fully inside she started stroking herself rapidly, letting rope after rope paint Undyne's tight insides, lubing it up for when she started moving.
creamfilledkittytitties12/19/2018
The moment the first rope of newly brewed pre hit her nethers Undyne gasped, just the sheer warmth of Alphys seed turning her on. The way the gooey fluid drooled down into her crack, sliding over her asshole and then cunt was incredible satisfying and whenever Alphys aimed one directly at her genitals she shivered in delight. Reaching back she gave her behind a smack after Alphys had coated it, precum sticking to her palm in strands as she pulled it back. But the lizardess had more on her mind than just drenching Undyne in her seed, a task now completed. The captain cooed happily as she felt the cockhead up between her legs and gripped the sheets in anticipation. Not that it would help as Alphys made her intentions clear with the first thrust, pressing it up against her asshole with unyielding force. "A-Alphys!?" Despite its monstrous size Undyne felt her anus begin stretching, gritting her teeth until the spongy yellow head was fully enclosed within her. "Fuuuuck!" she groaned, clenching but providing little resistance to the girthy shaft. "Oh fuck I-I can feel you filling me!" True to her words she could already feel herself getting pumped with pre, the large loads having nowhere to go but inside of her now.
ask-cockanaya12/21/2018
Alphys grinned and stroked the base of her cock as she momentarily enjoyed the tightness of Undyne's asshole. Each rub of her hands sent a rope of hot pre-cum into her bowels and Alphys sighed in delight as they soon squirted out around her cockhead. "+Fill you? That's just the tip!" A devious giggle came from Alphys as she widened her stance and looked forward, eyes locked onto Undyne's ass. She could see those cheeks spread wide by her cock and the hole spread even wider, the blue tinted ring clinging to her like a vice. With a grunt she thrust her hips forward, nearly knocking Undyne over from the force, and slowly forcing more shaft inside of her with a wet schlorping sound. "+God you are JUST! SO! TIGHT!!!" Each word was punctuated with Alphys thrusting forward and ramming more of her monstrous dick into Undyne's behind. "+H-have you ever even taken a cock before? I guess you know how to suck, not to fuck." Alphys slyly reached a hand up to scratch at the side of her snout, getting her glasses perfectly in the light to shine. Seems she was going to attempt to use her anime knowledge during lovemaking.
creamfilledkittytitties12/23/2018
Holding on to the bed was no longer something Undyne did instinctively, now it was a necessity as Alphys thrust rocked her whole body forwards. Her bloated stomach likely helped some with giving extra weight, despite it squishing out around her sides as she got pressed forwards. There was already some new growth starting thanks to Alphys constant output of pre causing the belly to bloat further, stretching her gleaming seed-covered scales. "A-ah oh Alphys!" The cockhead had disappeared into her stomach at that point but she could still feel it forcing its way through her anus going deeper. She had no control of her backside when it was stretched as open as it was so it quivered and clenched around Alphys by its own accord adding tightness and letting go in spasms. With that preoccupying her mind she didn't even realize Alphys' hentai borrowing, instead exclaiming "F-Fuck, then t-teach me!", tearing holes into the soggy madress with her sharp fingernails.
ask-cockanaya01/19/2019
Hearing Undyne going along with her poor, hentai based roleplay attempt has Alphys' heart fluttering and she can't help but stammer a little as she tries to regain composure. Even during that little bout though she's still pushing more of her shaft into Undyne, watching with glee as another foot disappears into her behind. She wonders if maybe, just maybe, she'll actually be able to fit her whole cock inside of her. The idea makes Alphys even more giddy and she gets back to trying her hentai phrases. "+I-I'll teach you alright! Professor Alphys will help her heavy titted student with her BIG. FAT! COCK!" Again her words were punctuated with a hard thrust to cram more of her beastly member inside, now finally past the fattest point in the middle. "+God I can't get over how tight you are! Have you ever even had anything up your ass?" Gasping sharply Alphys leaned a little closer, making her thrusts harder and faster, hopefully close enough for Undyne to hear her whisper. "+Am I fucking an anal virgin?"
creamfilledkittytitties01/19/2019
Undyne hadn't ever entertained the thought of being the one dominated, her fantasies involving her seducing some cute girl from her position as the Royal Guard captain. Now, however, her mouth watered at the idea of having Alphys dress up in a skimpy teacher's outfit and playfully teaching her how to effectively suck a cock her size. Luckily she couldn't daydream that cliché for long as she was constantly interrupted by the current fucking, the shaft having buried itself even deeper into her body. She unknowingly participated in Alphys hentai recreation by moaning like a whore in response to the lizard's kinky exclamations and when the question was posed she had to take several deep breaths before replying. "No, it's n-not even... big!" Plainly lying to the question might save face when it came to her mannerisms but there was no stopping the moans rolling out of her mouth. Neither the shaft, the fat cockhead having started to make a bump in the front of her belly, one threatening to disappearing between her tits.
ask-cockanaya02/06/2019
As much as Alphys wanted to think about the scenario as well she had more pressing issues at hand. Namely the fact she was living out one of her deepest fantasies already. She never would have counted on Undyne being as much of a size queen as she was or as stretchy. Must have been all that training she did. Every moan and gasp that came from her just drove Alphys further, her thrusts steadily getting harder, sliding the two of them on the creaking bed. Undyne's anus squelched as more and more of Alphys' fat shaft was pushed inside and it wouldn't be much longer before she was fully hilted. However Alphys wanted to do something special with it. Moaning loudly as her crotch nearly hit against Undyne's ass she paused and renewed her stance, standing tall on the bed as her shaft tugged out of Undyne's ass. "+N-not even big huh? Let's see how you handle all of it then!" Practically jumping up she swung her hips up into the air, nearly a foot of cock escaping, before she grabbed onto Undyne's shoulders and, with a grunt, pulled herself back down. All of that fat shaft swiftly replaced itself in the fish monster's guts, slamming in between her tits and making Alphys moan at the impromtu titfuck. Her heavy nuts smacked into Undyne soon after and nearly knocked the two of them over, a resounding clap echoing through the room. Not wanting to give her a moment to rest Alphys repeated the process a few times, panting heavily from exertion. "+H-HOW ABOUT NOW?!?!"
creamfilledkittytitties02/06/2019
Each inch of Alphys' mammoth cock felt excruciatingly good, even as Undyne's insides were being plastered by the constant stream of pre coating her intestines much like it had her outside. As her lover neared hilting inside of her she could see the shaft stretch her skin out between her breasts, distending her scales from its sheer girth. But before she would feel Alphys crotch against her ass it stopped, causing her to quizzically look over her shoulder. That gave her the view of the lizardess pulling out, the rush from having the shaft rub against her on its way out causing her to throw her head back and moan before the sudden thrust had her reeling from pleasure. She nearly lost her grip on the bed as the balls hit her thighs, though before she had any chance to regain her composure Alphys had begun pounding her again, breaking any attempts for Undyne to keep up. Her mouth opened in a stilted moan as each thrust knocked the air out of her lungs and kept her from replying; though from how her eyes had started to roll into the back of her head it seemed like Alphys was making her point.
ask-cockanaya02/07/2019
The fact Undyne hadn't replied after she started really ramming her made Alphys just a little bit worried. However as she kept up the onslaught Undyne seemed to get used to it. Or at least she started moaning with wild abandon again, each thrust of Alphys' cock making her let out a squeal of delight. Alphys almost couldn't be happier but she knew it was going to get so much better. All this stimulation amplified her already obscene pre-cum production, rapidly bloating up Undyne's body like a balloon, gallons of the stuff shooting from her mouth and ass every few minutes as the pressure got too great. At this rate there wouldn't be any room when she finally finishes up. Looking at Undyne's open mouth she gets a devious idea. Leaning forward briefly she kisses Undyne as she rams against her ass, tasting her own pre-cum in her mouth, the force of her thrusts deepening their kiss. As she pulls back she smiles mischeviously at Undyne and her glasses light up, covering her eyes. "+I've got s-something I want to try!" Without waiting for Undyne to say anything she pulls away and is back to pounding her blue butt with all her might. But on one of her thrusts she pauses when she's halfway out and grabs onto the base of her shaft, holding it tight as she pushes forward. Her cock pushes its way through Undyne's insides but it feels just a bit different. Groaning Alphys can feel Undyne's torso stretch around her cock before it presses against the back of Undyne's throat. With her angle decided Alphys rams forward and her cock forces its way out of Undyne's mouth, accompanied by gallons of pre-cum and Alphys' triumphant moan.
creamfilledkittytitties02/09/2019
Holding on to the bed was just a formality at this point as Undyne's stomach had swollen up with so much precum that it served as a weight, even with Alphys' frantic pounding. At some point she could feel her mouth fill with precum and suddenly it was oozing out, turning into a pour as each thrust shot a new huge salvo of pre into her overfilled gut. The clear fluid ran down her chin and she could barely get her ragged breaths in between the gouts pushing out from between her lips. She sloppily kissed Alphys back, unable to give much better, but the suggestion to try something new confused her. She was already teetering on the edge of an orgasm and Alphys wasn't even fucking her pussy, and now she wanted something new?

Undyne would quickly find out what that meant as she felt Alphys pull back and then slowly push forward again. Only this time it felt different, more precum pushing up her throat until she could feel the fat log of a cock begin its ascent up her esophagus. She made a surprised gurgle as her throat distended but then went silent; not by choice, but the feet wide cockhead thrusting its way past her lips. The abrupt thrust had her body overload with ecstasy and as the enormous dick continued to let out its goo without any blue-scaled fishwoman blocking it Alphys would get the extra treat of having Undyne spasm and twitch around her bitchbreaking shaft from the orgasm hitting her.
ask-cockanaya02/27/2019
Alphys had almost closed her eyes just before she made the thrust, almost wanting to surprise herself with the sight. She didn't and was glad. She got to watch as every inch of her beastly member forced its way out of Undyne's mouth amid her loud gurgles and sputtering. Saliva and pre-cum splattered onto the already ruined bed as Alphys' cock throbbed in the cooler air, a bit of steam rising off of her hot cock. Gnawing on her bottom lip she just kept pushing until her crotch hit against Undyne's ass, her eyes twitching as she shoots a few ropes of pre-cum in pleasure. "+A-anal AND a blowjob? For a virgin y-you sure are adventurous!" Alphys wasn't sure if Undyne could hear her through the intense orgasm she was having. It was a miracle Alphys was focused enough to talk with all of Undyne's insides rippling around her like a school of sensual fish.

But she was nowhere near done yet. Grabbing onto Undyne's ass with both of her hands, digging her fingers into those cheeks, Alphys started to slowly pull her hips back. She felt as Undyne's tight throat and ass slid along her shaft in tandem, shooting off more ropes of pre-cum. As her head disappeared into Undyne's mouth it kept firing, bloating out her cheeks and forcing pre-cum to spew from them and her nose. Once she had about a foot or so of shaft outside of Undyne's ass she rammed forward again, loving the obscene gurgle that came from the royal guard's throat, pulling back and ramming forward again, continuing her onslaught and only getting faster.
creamfilledkittytitties03/01/2019
Even if Undyne had heard she would have no way to respond. Not only with the dick jutting out of her throat, stretching her neck and lips to fit its obscene girth, but when Alphys pulled back she would get no reprieve as the shaft was replaced with globs upon globs of precum. It looked like she would open her mouth to speak but instead the same translucent goo burst out, the volume so much that it would splurt out and launch onto the wall of the other side of the bed. And then, before she could even recover from that, Alphys had thrust in again, bringing along a new wave of bliss from having her entire body penetrated as well as filling her throat with cock once more.

She would get to go through those motions again and again, each time picking up speed until her adam's apple was constantly bobbing from having the shaft grind in and out of her throat. Alphys' massive gonads was constantly slapping into her thighs and if there was anything positive to this (beyond the insane amounts of ecstasy) it was that her gut was no longer growing, cum instead being displaced onto the bed and wall in front of her. At this point she was nothing more than a warm, tight cocksleeve, a bloating gleaming blue sextoy that never stopped spasming, squeezing and twitching around the lizardwoman's powerful monstercock.