The sauna's door creaks shut behind him, sealing him off from the world outside. The stranger strips naked, his cock already half-hard from the taboo thrill. He takes a seat on the bench, the rough wood biting into his ass as he begins to stroke. The steam swirls around him, obscuring his view, but not before he catches a glimpse of another figure, hidden in the shadows, watching. The thought sends a jolt of electricity through him, and he strokes faster, harder, his body tensing as he races towards release.