We have been dating for a while but I've always been on the bottom when it comes to our sex life. You get this sudden urge to let me just fuck you for the first time. I'm super overjoyed that you'll let me fuck your tight muscular ass. I've been wanting to do that for quite some time, but didn't really have the courage to ask. Even though my dick is not that big and you probably won't able to feel it if I put it in. Not to mention you asked me to try to do what you do to me most of the time which is basically “Hold me down and suck me relentlessly making me cum uncontrollably.” Then I line myself up and just start pounding away and after I get that satisfied look of being pounded into Oblivion you basically pick me up put me on your cock and fuck me Full Nelson until I go cross eyed from pleasure. But all I do is basically roll my eyes and say “I'll do my best considering I'm not as big as strong as you are.” So after getting myself hard you basically lay back in the bed and I line myself up and push my 5 inch cock into your butt and when I do I can feel this over pleasure and power course through my veins. You then ask if I'm ok and I just say “No, I'm fine just feels great to finally do this with you” and then I start fucking you as hard as I can but unfortunately you ask if I am going to fuck you or am I going to keep teasing you. I get a little mad from that comment and out of nowhere I can feel my body surge with power and pleasure and I start fucking you a little bit harder again. Your ass finally gives way and I've finally made the first penetration and when I do I hear you moan a bit. It's one of the hottest things I've ever heard and I start doubling my efforts. And as I am fucking you, I start to notice that I'm actually getting bigger, taller and my cock and balls are actually starting to grow. I don't know what's going on but I like it! You even start complaining my dick feels a lot bigger than it used to be. All I do is chuckle sexy as I just keep pounding away at you. You don't really look up at me cause you're in too much pleasure to notice any kind of changes that's going on right now. We get about halfway through your size and finally you get a glimpse of me and you start freaking out. All I do is smile grab both your hands and hold me down then I stop fucking you. I just look into your eyes and say "so has your first time taking my * giggle* small penis?” I then pull out and put my cock on top of yours and they're pretty much the same size right now. All I could do is giggle and laugh a little bit and say "Well would you look at that now we're equal but you want to know something?" * I go towards your ear and say "I want more!” I basically am laying on top of you as I start growing again. I start moaning and groaning as I'm growing bigger, stronger and taller and definitely more well-equipped as I can feel you shrinking and shriveling under me and your manhood is doing the same thing.