As this is my otp, I might as well start off this book with a ship that i like (America rides soviet like the cowboy he is, if you're confused about a few things, ask) 

-------------------- America's pov---------

Both of our lips are locked in a passionate kiss with one another. Our clothes strewn about the  room as we grabbed each other. I push Soviet backwards so he falls onto my bed. 

"Eager, are we?" He remarks as I bury my face into his neck as i kiss it. 

"hmmmm" I grumble as my voice is a little muffled, I sit up on his chest, straddling him. He puts his hands on my hips "you ready?" I ask, he clearly is as I can feel his hard-on right behind my ass, so i wiggle my ass because I can, He nods and tries to flip us over so hes on top, but i hold his shoulders down so he can't. "Nope, I'm going to top today" I smirk as he frowns at not going to top me. I'm also excited myself, but perhaps today I'll ride him due to how wet I am tonight, and because I feel like it. 

I slowly lift my bottom up and raise it above his dick, and then slowly sink my cunt around his dick, he is quite large so I took my time. In hindsight I probably should have stretched myself first, but its a little too late for that. After inching my way down his meaty rod, stretching both pleasurably and painfully.  I sit and wait for a few moments to adjust, I look down to see soviet and he is...enjoying this, face showing pleasure, but I can tell he wants me to start moving. 

I slowly being to bounce up and down, riding him as I adjust to his size a bit more, the pain going away more in favor of the pleasure. My dick erect and just flopping uselessly. He proceeds to place his hands on my hips to speed things up a bit... and perhaps to have some control here, the bastard. I then angle myself to find my prostate/g-spot, and after a few attempts I find it, feeling sparks of pleasure, Soviet smiles and starts lifting me up and down again to fuck a bit harder, all the while aiming for that sweet spot. 

After a while, I can feel myself getting close, and him as well, I reach my hands down to rub at my dick, but before i can touch myself he slaps my hand away. "No touching" he grumbles out, getting closer to orgasm. 

"Why not?" I ask, getting closer to my edge, and before he can reply, he orgasms, filling me with his warm cum, almost enough to make me finish as well, almost. 

He lifts me off him and sets me next to him on the bed. "Soviet" I whine, trying to get him to notice i haven't cummed yet, getting further from the edge. He turns to face me and notices my dick still erect, having leaked pre-cum, but still hard. I begin to reach my hands down so as to finish myself off, but again, he slapped my hands away. 

"I said, no touching" He says as he moves my hands away from my dick, and spreads me out on the bed and crawls over me, locking my lips in a kiss, with my hands held in one of his hands above my head, and reaches the other hand down to my dick and slowly rubs it. 

He then begins to move the hand on my dick faster, bringing me close to orgasm yet again. He looks me in the eyes as I finally orgasm, getting my spunk on both our chests, after my orgasm is finished, he stops rubbing but keeps a grip on my dick. "mine" He replies to my look of confusion, in my post-orgasm bliss his words didn't process completely. 

Shortly after we both fell asleep on the bed we were on...that we should probably change the sheets on

The next morning he gave me a reminder of he had meant with his words today.