Mark had been eyeing Tom's ass all night at the bar, and by the time they stumbled into Mark's apartment, there was no more pretending. "Get those pants off," Mark growled, kicking the door shut. Tom hesitated for a second, then shoved his jeans down, his cock already half-hard and leaking. He was twenty-two, never had anything up his ass before, and Mark knew it from the way the kid kept clenching his cheeks.
Mark didn't waste time with sweet talk. He spun Tom around, bent him over the kitchen table, and spit right on his hole. "First time getting fucked, huh? Gonna stretch this virgin ass wide." Tom grunted but pushed back a little, so Mark pressed two fingers in dry at first, then worked in the spit. Tom's hole fought it, tight as a fist, but Mark twisted and scissored until the muscle gave. "Fuck, you're gripping me already. Bet you jerk off thinking about cock in here."
Tom moaned, low and dirty, when Mark added a third finger and started pumping. "Yeah, open up for me. This hole's mine tonight." Mark's own dick was throbbing, thick and veiny, dripping pre-cum onto the floor. He pulled his fingers out, lined up, and pushed the fat head against Tom's rim. No lube beyond spit and whatever Tom was leaking from his own cock. "Breathe, bitch. It's gonna burn."
He shoved in slow but steady, forcing past the ring until half his shaft disappeared. Tom yelled, half pain, half shock, his hole clamping down like a vice. "Shit, you're huge," he gasped. Mark didn't stop. He grabbed Tom's hips and drove the rest in with one hard thrust, balls slapping against Tom's taint. "Take it. First time anal and you're getting railed raw." Tom's ass cheeks spread around the base of Mark's cock, red and stretched, the skin shiny with spit.
Mark fucked him like that for a while, short brutal strokes that made the table creak. Tom's hole loosened just enough to let Mark pull almost all the way out and slam back in, each time going deeper. "Look at that greedy fucking hole swallowing dick. You were made for this." Tom reached down and started jerking his own cock, fast and sloppy.

Pre-cum flew from the tip every time Mark bottomed out.
They moved to the couch. Mark sat, pulled Tom onto his lap facing away, and impaled him again. "Ride it. Show me how bad you want your first load in your ass." Tom bounced, awkward at first, then finding the angle that made Mark's cock rub his prostate. Every drop down made a wet slap. Mark reached around, pinched Tom's nipples hard, then wrapped a hand around his throat. "Gonna breed you. Fill that tight gay hole full."
Tom came first, shooting ropes across the coffee table without touching himself again. His ass pulsed and milked Mark's cock, squeezing so hard Mark groaned and unloaded deep inside, pumping thick cum into Tom's guts. He kept thrusting through it, pushing the load deeper until it leaked out around his shaft, white and messy.
They didn't stop there. Mark flipped Tom onto his back, legs up, and fucked him missionary style, watching the kid's face twist with every thrust. "Still tight. Can't believe this is your first time taking dick." Tom just nodded, eyes glassy, hole sloppy now with cum and spit. Mark came again, adding to the mess, then pulled out and made Tom lick his cock clean.
By morning Tom was sore, hole puffy and used, but he was already asking when they could do it again. Mark just smirked and shoved two fingers back inside the cum-slicked entrance. "Anytime, virgin. This ass is mine now."