The guy's hand slowly slides over Sean's abs, making its way down to his hips until it finally stops at his pussy. As soon as he arrives near it, the guy freezes, stopping his pumping up Sean's ass.
"What the...", he exclaims, starting to feel around Sean's pussy, caressing it and slowly putting a finger in it. "You have a pussy?"
"I'm sorr-" "Don't be, this is perfect" he was promptly interrupted. "I just fuck guys here for fun, a pussy is way better, anyway."
With that he pulled out of Sean's ass, leaving him feeling empty. He then spun him around with his back against the wall, lowered himself and positioned the tip of his dick against Sean's pussy.
It's gonna happen, Sean thought. He would lose his pussy virginity. Sean was amazed how little the guy cared about fucking another guy with a pussy.
But his thoughts were quickly interrupted when the guys dick entered his pussy for the first time. It was a weird feeling, like jacking off but without the dick to go with it. He looked down as the guy's sizeable member slowly disappeared into his new hole until it bottomed out and their abs touched, their muscular, manly bodies pressed against each other in the front. He then started pumping in and out, just like he did inside of Sean's ass before, but this felt different - better. A jolt went through his nether regions and his whole body every time the guy's dick moved inside of him.
He felt weak, pressed against the wall, his hands pressed against it by the other guy. He fucked women like this before, but now he was the woman - just that his body was that of a man's - apart from his pussy.
The guy started fucking Sean harder and harder, his hips meeting with Sean's every time he bottomed out, sounding a slapping noise every time this happened. His balls slapping against Sean with every thrust.
"Take my big dick you little pussy boy" he whispered, apparently enjoying treating Sean as what he was: not a real man anymore. Sean moaned loudly, rocking his hips with every thrust to get the dick as deep inside him as possible.
After a while the guy started pumping more frantically. "Fuck, let me cum in your pussy" he said as he finished his last thrusts and shot his load.
Sean could feel his pussy filling up with the guy's sperm and at roughly the same time, Sean experienced what it was like to have an orgasm now. His whole body spasmed just like when he was cumming, just more intense. His legs went weak and he wouldn't have been able to stand anymore if not for the guy pinning him against the wall with his dick up his pussy. He let out a rather loud moan, his pussy muscles contracting around the dick twitching inside him.
He then felt the guys dick slowly pulling out, his body still weak, struggling to stay on his feet.