The door creaked open just as I hit that perfect rhythm. My hand was wrapped tight around my throbbing cock, slick with lube, pumping furiously as the video on my laptop screen showed two ripped guys going at it hard. 

Sweat beaded on my forehead, my breaths coming in short, ragged gasps. 

I was so close, teetering on the edge, when—fuck—there he was. Alex, my best friend since high school, standing in the doorway with wide eyes and a backpack slung over his shoulder.

“Shit, dude, knock much?” I yelped, but my body betrayed me. I didn’t stop right away; the momentum was too strong. My hips bucked involuntarily, and...