Sorry for the long delay, just haven't had the energy to type the rest of it out, lets see how far i get. I also appreciate everyone's feedback

Ignoring our frantic grunts, the girls straddled both of our shoulders, forcing our heads down onto the ground. I could move my head just enough to see Chris attempt to buck Katie off of his back before she began tickling his feet. The sounds of his laughter were drowned out by my own gagged hysteria as Lauren dug her fingernails into my sides. Both of us boys began to violently spasm while the girls joined in with laughter of their own. I could hear them talking to each other and mocking us, but could hardly hear anything else over the sound of my own muffled screams. My face felt as red as Chris's looked as Lauren ran her fingers from my sides up to my helplessly wriggling feet. I wanted desperately to give Chris another evil glare to make sure he knew this was his fault, but it wasn't very effective with the both of us uncontrollably laughing.
The girls halted their wandering fingers after what I can only guess was 15 or 20 minutes, Chris and I panting heavily as we tried to regain our composure during this very welcome break. It was already difficult enough to breathe with Lauren straddled atop of me, but with the tickling it was almost impossible. It was during this break that I was again thankful for being face down, since having Lauren on top of me in a bikini was having embarrassing effects on me.
"Are those tears running down your face big brother?"
"HRRMM MMMMM!"
"I think your brother wants to be tickled some more."
Chris let out a series of muffled protests, only to have Katie shush him and pat his head, telling him to be quiet. After less than a minute the girls resumed their tickle torture, making fun of us throughout the entire ordeal. This time they didn't let up for what seemed like an eternity, Lauren's hands constantly shifting from my feet back down to my armpits and ribs. The girls eventually flipped up onto our sides to tickle our stomachs, only to find that we were both a little excited from having girls on top of us.
Katie was the first to react by saying, "Again!? What is wrong with you boys! Can't you control yourselves just once?"
We both angrily grunted into our gags, jerking at the ropes while trying to roll back onto our stomachs. The girls giggled at us and began discussing what to do next, ignoring the two furious boys writhing around at their feet.
Lauren raised her voice to drown out our gagged demands for freedom saying, “Maybe we should pour some honey on them and leave them to the ants?”
The girls found our muffled protests to the suggestion far more entertaining than the actual idea, and continued to provoke us into shouting through our gags and yank violently at the ropes. After spending another few minutes brain storming ideas Katie and Lauren had decided our fate. Despite our garbled shouting they pushed us together on our sides and tethered us together at our waists. Satisfied that no amount of squirming would allow us to shift our ‘excitement’ away from the other boy, the girls dragged us over to their towels and used our heads as foot rests.
I tried telling Katie that this wasn’t funny anymore, but her response was only, “Isn’t this like….the hundredth time you two have wound up humping each other? I bet you’re going to miss being able to do this in the army huh Matt?”
Had Lauren not been rubbing her feet over my face Katie would have seen just how furious I was at her. I silently strained against my bonds, refusing to entertain the girls any further by grunting gibberish through mg gag. My hands and feet waived around in the air behind me as I arched my back, pressing myself even harder against Chris. The constant friction wasn’t helping either of us control our excitement, but we were both far too angry at the girls to give up squirming.
“What’s that Matt? Finally nothing to say? Or are you just too busy have a special moment with Chris? Or maybe you can’t breathe with Lauren’s feet in your face.”
The most noise Chris and I made were short grunts as we continued to tug at the ropes, both of us having silently agreed to refrain from letting the girls laugh at our gag talk. We would occasionally make eye contact with each other as we awkwardly shifted our hips around, causing even more grunting from us.
“Let this be a lesson to you brother. I’ll always own you, no matter how tough you think you are. So try not to get all cocky when you’re in the army. And Chris, we’ll have to find another boy for you to get intimate with!”
Both of us lost our cool and let loose a slurry of gagged shouts, causing the girls to bust out laughing. After another hour Chris and I lost our spirit to resist and just sat silently while the girls sunned themselves with their feet keeping our heads pressed to the ground. They took turns posing over us in different victory stances while the other would take pictures. We spent the rest of the afternoon as their footrests, only being untied after we nodded in agreement to a list of outrageous claims of how awesome they were.
Sorry it took so long for me to finish this one out. Hopefully you all liked it, any feedback is always appreciated.