"Well... this is a problem"

Kira's currently faced a bit of a situation. In another run of genetic modification, she had accidentally expanded her breasts to the point of incapacitation. They had grown to the size of mattresses and Kira was stuck on top of them, unable to move anywhere lest her mammoth mammaries would roll on top of her and smother her... not that she would mind.

To make things even worse (or better), Kira had also created herself a massive penis, with a pair of basketball sized testes to boot. The red-hair geneticist had recently taken an interest in autopaizuri, but the entire thing had backfired on her and now she was stuck, stark naked, on top of her bed of titty. It's quite the bed too, Kira could spread her arms and legs out as far as she could and still be touching breast.

"Listen, I love you babies, but I don't wanna stay in the middle of my room for the rest of the day."

She hugged as much breast as she could and gave an affectionate kiss to show there were no hard feelings. And another kiss to make sure she got the point across. As well as one more... And another, until she was basically making out with her own breasts.

"God, I wish I can suck your nipples <3. I can feel them getting harder against the floor and it feels so good <3."

The already sizable puddle of breast milk continues to grow as Kira distracts herself from what she was originally supposed to do in the first place. While she continues to give her breasts lots of love, she can feel her dick starting to grow more and more erect.

"Oh? Don't think I forgot about you, mister. I'm quite proud of the way you turned out."

She shook her waist and saw her fat balls wobble continuously as they audibly sloshed from how densely packed full of cum they were. Her penis being sandwiched between her large balls and even larger tits created an extraordinarily pleasuring sensation. Precum leaked all over her tits until her dick got as erect as it could be at over a foot in length.

"Gah! I need to focus! Sorry big guy, as soon as I find a way to get out of this I'm milking you until you're dry <3."

Kira laid her head on her breasts as she brainstormed of a way to solve her problem. She's already tried reaching for her computer but it was way too far for her reach.

"Oh! I know! I could call for Wr-, oh, no, she's out shopping for parts."

Dejected, she placed her head between her arms and continued to think about what to do.

After a minute of fruitless thinking, Kira noticed her dick started to go back to feeling really good. Subconsciously, Kira began to hump her massive udders, slathering precum all over them.

"Oh man... if I weren't trying to get out of it I would be doing this all day..."

Kira thought for a moment, not even trying to stop her humping motions.

"Well, for a little bit, just to see how it feels..."

Kira picked herself up by her knees and got into a doggy-style like position. She aimed her dick right between her breasts and allowed a bit of precum to splatter into it for lubrication. After a thorough lubing, she slowly inserted her length cock in between her gargantuan mammaries.

The feeling was indescribable. The way her breasts carressed the entire length of her dick as her warm, smooth, skin sent tingling sensations from her penis all the way up her spine.

"Ummmf, holy shit <333! I nearly came from that!"

She hugged her breasts and gave it another passionate makeover.

"Mmmf, what did I ever do to deserve you guys?"

While she french kissed her tits, Kira began to slowly thrust in and out of her breasts, sending even more tingling waves of pleasure throughout her body.

"Hahh, I... I guess I can just do this while I keep thinking."

Try as she may, she couldn't help but get distracted by the tidal wave of pleasure she continues to feel while she titfucked herself. On it's own, her body began to thrust harder and faster. Unexpectedly, her testes tensed up and shot a load of thick cum directly into her breasts. Kira moaned loudly and she continued to fuck herself.

"Hooooh my goodness! That felt so good and I don't think I even fully came yet! That must've been some sort of mini-orgasm! Oh my gosh, I can't wait until I totally flood my tits with a tidal wave of semen <333"

Kira's cum slicked tits provided further lubrication for her already pre-gushing cock. At what must be a liter every few seconds, her entire body as well as the back half of her giant breasts were slicked and glistening with precum. The sensation of feeling pre gush out of her breasts and coat her stomach, thighs, and bosom was one of many pleasures she's experiencing at the moment. At the same time, her nipples, fully erect and hard as steel, were releasing so much milk its already giving the numerous drains in her room a hard time keeping up.

Kira continued to fuck her own boobs, slowly acceralating the pace of her thrusts. Every time she would feel another load coming on she would hilt her penis deep inside her breasts and release another giant load into the bottomless recesses of her titties, moaning loudly as some of it overflowed onto the surface, continuously lavished her body with her viscous semen. She can already feel the space between her mammaries filling up with her thick spooge, and she positively cannot wait until the entire thing is packed with her own cum.

The red haired scientist kept like this for several minutes until she can finally feel a proper orgasm coming on. A sudden torrent of pleasure sent tingling sensationg up and down her entire body, indicating that her balls were finally about to unleash all that they have. Kira could feel them starting to expand as the sloshing noises began to grow even louder. She rapidly picked up the speed of her fucking, desperately trying to empty her testes. Her deluge of pre was steadily replace with semen, in anticipation of the upcoming orgasm.

Exorbitantly wet slapping noises resonated throughout the house as Kira was finally reaching her orgasm. After what seemed like an eternity of near tortuous pleasure, she was finally tipped over the brink of orgasm. Thrusting her dick as deep as it could possibly go, her balls unleashed a literal tidal wave of semen directly into her breasts as she moaned at the top of her lungs.

Gallons and gallons worth of semen ejaculated from her cock in powerfully giant spurts. With each spurt Kira would hilt her dick even deeper into her boobs, as each thrust would cause her to cry in pleasure. Her ejaculation persisted for almost a minute until it finally subsided.

The geneticist layed on her tits, totally exhausted and nearly mind broken from all consuming pleasure. She was practically covered head to toe in thick, hot cum. Not to mentioned the wall she faced away from, which was painted off white by the amount of collateral semen that splashed out of her tits. She can feel what must be a bathtub's worth of splooge hidden in between her utterly massive bosom.

After a minute of rest, her balls started to expand again. She can feel a growing tingling sensation as her nuts grew more dense with cum. She reacted in a mixture of trepidation and total excitement as she stared in awe.

"Oh my goodness, am I going to have to milk you again? I'll never get anything done at this rate!" The cum-covered redhead said, as she already began to thrust into her titties again.

"I don't think I mind, to be honest <3"

+++++

Wren unlocked the door to the apartment after a fruitful shopping trip at the electronics store. She whistled cheerfully, her mind racing with new ideas for machines. As soon as she entered the house, however, she began to hear what sounded like loud yelling and torrents of fluid eminating from down the hall. Wren immediately figured out that is was Kira and her lewd shenanigans. She never sounded this loud before, was she alright?

Worried, Wren rushed towards Kira's room and opened the door to see if she wasn't in trouble.

"Kira, are you alri-"

As soon as she opened the door, a wave of breast milk and semen flooded into the hallway, thoroughly soaking her shoes and pants. What must be a foot of sexual fluids had swamped Kira's room, but that wasn't even remotely the weirdest thing in sight.

Kira was laying on her extremely large breasts, moaning incomprehensibly in pleasure. She had somehow managed to grow some male genetalia, which were obscenely huge. Her beanbag sized testes flopped up and down as they slapped against Kira's boobies, spraying cum all over Wren, whose just standing there in shock.

Cum cascaded down Kira's breasts as she rapidly thrusted in and out of them. Every ten to twenty seconds, she would shove her prick deep in her cleavage and yell in pleasure as she orgasmed, sending a bathtubs worth of viscous splooge into her tits. With every spurt she would hump her bosom deeply, until the orgasm subsided, as which point she would be already back to rapidly titfucking herself.

Wren stood there for a solid minute before Kira even noticed her.

"Ooooh hii Wren!" Kira slurred, "Yuh... You c-came jusht in ti... ti... hah... HAAAAAHNNN <333"

Kira moaned as she once again came into her boobies.

"Shuh... Shorry about thaaat... I waassh shtuck like thiss for hawlf an hour... Would you mmmmind helpin' me out?"

Wren paused for a moment before responding, "...Would you mind giving me a minute?"

"Oh, of courshe naawt!" Kira mumbled, "Acttually, come back innnnn... tuh... ten minutess... I haven't fin... fuh... fffaaAAWWWWHHHNN <333"

Wren had already left the room by the time Kira orgasmed again, escaping to the privacy of her workshop before Kira could notice the growing wet spot on Wren's crotch.

Wren dug around her secret cabinet of sex toys to find her most powerful vibrator. She hastily undressed herself and layed on her back ontop of a nearby table. Setting the vibrator to medium, she placed the tip on her girlcum slicked pussy as she listened closely to Kira's defeaning sounds of pleasure. Each time Kira yelled from an orgasm, Wren's vagina got progressively more wetter until she was unable to hold herself any longer. The engineer set the vibrator to its highest setting and thrusted it deep into herself, cumming almost instantly. She continued to thrust the dildo in and out of her while her mind was consumed with thoughts of Kira's predicament, wishing she could join her in the fun.

+++

Half an hour had passed, and Wren had already orgasmed multiple times. By now, the table she was lying on was slick with femcum. Exhausted and sitting in the afterglow of her post-orgasm, she noticed Kira's ferocious sounds of fucking had finally quieted down. She must be done, Wren thought to herself.

Dressing herself, Wren walked over to Kira's room and opened the door again. Another tsunami of sex juices flooded the hallway. Wren was lucky she had the foresight to waterproof the entire apartment, especially Kira's room, which she had to double waterproof and install drains.

"Note to self:" Wren thought, "install more drains in Kira's room."

Speaking of Kira, she had finally stopping titfucking herself, and is now laying on her breasts, limp and exhausted from an hour-long titfuck. Surpisingly, despite the fact that she had been cumming for nearly an hour, her dick was still totally erect and her balls had not even shrunk in size. Every few seconds, her cock would squirt a gallon of potent semen onto the floor. Wren once again stood in shock.

"Wwwwrrreeeeennnn..." Kira moaned, her eyes rolled up to her head and her tongue drooling out.

Wren snapped out of it, "K... Kira, oh my god! Are you alright!?"

"Beeeetterr thhhaaaan eveeeerrrr, hehehe <3"

"Uh... that's... good... so, uh... you wanted me to turn you back?"

"Yeeeaaahhh," Kira slurred, "sshhhrrrink my boooobies."

Stifling a chuckle at hearing such a rare line from Kira, Wren asks, "Your, uh... junk, too?"

Kira stared back at Wren with a lewd smile, "Helll no, I'm gonna miiillk mysshhhellf alllllll niight <333"