Curiosity gets the better of you as you hear the water running in the bathroom. Tiptoeing closer, you notice the shower curtain slightly ajar. Your roommate, lost in the rhythm of the water, doesn't notice you watching as he lathers up, his body glistening under the steam. His hand moves slowly, deliberately, exploring his growing erection. You're frozen, your heart pounding, as you watch him pleasure himself, his moans barely audible over the running water.