The crumbling walls of the derelict building provide little cover, yet the two friends, driven by lust and curiosity, take the risk. They stand facing each other, their hands shaking slightly as they reach out, tentatively touching each other's cocks through their underwear. The sensation is electric, sending jolts of pleasure through their bodies. They're careful, their movements slow and deliberate, their eyes locked onto each other's, taking in every reaction. The thrill of the forbidden is intoxicating, their strokes becoming more confident, more insistent. They're close, so close, their breaths coming in short, sharp gasps, their cocks throbbing in their hands. Suddenly, a noise from outside freezes them, their hearts pounding in their chests as they quickly tuck themselves away, their eyes wide with fear and excitement.