The door slammed shut behind Mark, the cheap motel lock clicking like a gunshot. He was twenty-eight, straight as they come, and had just lost a stupid bet with his old college roommate Derek. One night in this dump, no phones, no way out until morning. Derek had always been a cocky bastard, bigger and meaner than Mark remembered.
"Strip," Derek said, leaning against the wall, eyes hard. "Or I tell everyone about that video from the frat house."
Mark's stomach dropped. "Fuck you, that's not funny."
Derek didn't laugh. He stepped forward, grabbed Mark by the shirt, and ripped it open. Buttons flew. "I said strip. Now."
Mark swung once, but Derek was faster, pinning him face-down on the bed. The bigger man's weight crushed him. Rough hands yanked Mark's jeans and boxers down in one yank, exposing his ass to the cold air. Mark thrashed, but Derek's grip was iron.
"Keep fighting and it'll hurt more," Derek growled. He spat on his fingers and shoved two straight into Mark's hole without warning. Mark yelled, the burn sharp and sudden. Derek worked them deep, twisting, forcing the tight ring open. "Look at that straight ass clenching. You hate this, don't you?"
Mark's cock stayed soft at first, but Derek's fingers kept pumping, scissoring him wider. Spit and lube from Derek's pocket slicked everything. When Derek pulled his fingers out and replaced them with the blunt head of his thick cock, Mark bucked hard.
"Nofuck, no!"
Derek pushed in anyway, slow but relentless, stretching Mark's virgin hole around his shaft. Inch by inch, the fat cock forced its way inside until Derek's balls rested against Mark's ass. Mark groaned, half pain, half something else as his body betrayed him. Derek started thrusting, deep and dirty, slapping skin on skin.
"Take it, you straight bitch," Derek grunted. "Your ass is mine tonight." He reached under Mark, grabbed his cock, and stroked it hard. Mark's dick thickened against his will, leaking pre-cum onto the sheets.

Derek fucked faster, pounding the prostate with every stroke until Mark was panting and rock-hard.
Derek flipped him onto his back, legs shoved wide. He slammed back in, watching Mark's face twist. "Look at you getting off on forced gay sex. Your cock's dripping for it." Derek jerked him in time with the thrusts, thumb smearing the head. Mark came first, shooting thick ropes across his own stomach while Derek kept pounding through the spasms.
Derek didn't stop. He pulled out, flipped Mark again, and drove back in from behind, using the cum as extra lube. "Round two, hole. I'm not done owning this ass." He fucked him raw and rough for another twenty minutes, forcing another half-hard twitch from Mark's spent cock before finally unloading deep inside with a loud grunt.
They lay there breathing hard. Derek pulled out slow, cum leaking from Mark's stretched hole. Mark didn't move. His body ached, used, but his cock gave one last twitch at the filthy feeling.
Derek lit a cigarette. "Same bet next month?"
Mark didn't answer. He just lay there, hole sore and dripping, knowing he'd lost more than the bet.