I always thought I was straight as an arrow until that night when my buddy Dave set me up. We were texting about hooking up with some chick he knew from the app, and he said she was into threesomes but wanted to start with one guy blindfolded so it felt more intense.

I was horny as hell and said yes without thinking twice. Dave told me to come over to his place, strip down in the dark guest room, and wait on the bed with the blindfold on. "She'll take care of the rest," he promised. My cock was already half hard just from the idea.
The door opened a few minutes later. Footsteps came closer, then a warm hand wrapped around my shaft and started stroking slow and firm. It felt good, really good, so I stayed quiet and let it happen. The hand was bigger than I expected, rougher too, but I figured it was just the dark playing tricks. Then a mouth replaced the hand, hot and wet, sucking me deep in one smooth motion. I groaned and pushed my hips up, thinking this girl was talented as fuck.
After a minute the mouth pulled off and I heard the sound of clothes hitting the floor. A body climbed onto the bed, straddling my thighs. Something heavy and thick slapped against my stomach, way thicker and longer than mine. My brain stalled for a second. That wasn't a strap-on. That was real, warm, pulsing skin. Before I could say anything, Dave's voice, low and amused, said, "Surprise, man. She's not coming. It's just me and this big cock you keep staring at in the gym showers."
I ripped the blindfold off. There he was, grinning, his massive dick resting on my abs, easily nine inches and thick as my wrist, the head already shiny with precum. My heart hammered. Part of me wanted to shove him off and leave, but my own cock was throbbing harder than ever, leaking onto my stomach. "What the fuck, Dave?" I managed.
"Relax," he said, wrapping his fist around that monster and stroking it right above me. "You said you wanted a first time with a big cock. Now you got one. No one else has to know." He shifted forward until the fat head nudged my lips. "Open up. Taste it."
I hesitated, but the smell of him, musky and male, hit me. My mouth opened on its own. The head stretched my lips wide, heavy on my tongue, salty and thick. I gagged a little when he pushed deeper, but Dave just held my head and fed me more, telling me how good my mouth looked stretched around his dick. I started sucking, sloppy and eager once I got past the shock. My own hand drifted down to jerk myself while I worked him.
Dave pulled out after a few minutes, flipped me onto my stomach, and spread my cheeks. "Gonna open this virgin hole for my cock," he growled. Spit hit my crack, then a thick finger pushed inside, working me open slow and steady. It burned at first, then started feeling weirdly good when he crooked it against my prostate. By the time he had three fingers in me I was pushing back, begging without words.
He lined that huge cock up and pressed in. The stretch was intense, almost too much, but he went slow, letting me adjust inch by inch until his balls rested against me. I felt stuffed full, owned by that thick meat. Dave started fucking me in long, deep strokes, praising how tight I was, how my ass was milking his big cock like it was made for it. Every thrust hit that spot inside me and my own dick rubbed against the sheets, leaking steadily.
I came first, shooting hard without touching myself, the orgasm ripping through me while he kept pounding. Dave lasted longer, grunting as he buried himself to the hilt and flooded my guts with hot cum. When he pulled out I felt empty and sore, cum leaking down my thighs, but I was already half hard again thinking about doing it once more.
Dave didn't trick me twice. After that night we met up regular, no blindfolds, just two guys and his massive cock turning me into the hungry bottom I never knew I was.