Crawl into the hung guy's stall and hope for the best
From Create Your Own Story
You slip beneath the door, into the hot surfer's stall. He's checking himself out in the mirror as he tries to pull off the sweatpants. His back is to you and the plebes of his back are broad, muscled, and tan, leading down into his underwear, which holds his big ass. He has a dusting of hair over his abs and up onto his chest and a thick covering of hair running up and down his legs. His trimmed beard makes him look a bit older but you can still tell he's young. You realize you've gone unnoticed and clear your throat to announce your presence. As he turns, plenty freaked out you enter his personal space and grab his crotch, reaching around with your other hand to palm his ass. The sounds he was going to make catch in his throat as he realizes what you're there for. His countenance changes and he smirks at you as you feel his body up. "So," he says, "want me to fuck you or suck you?"
