Empty carriage, only the rhythmic clatter and best position for double penetration. She locks the door, strips, and straddles the seat facing the window. Moonlight paints silver across her skin as she chants “best position for double penetration” in time with the rails. Four fingers stretch her open; the wet slap echoes louder than the train. “Everyone outside, see best position for double penetration come,” she gasps. The train enters a tunnel—darkness swallows everything except her rising “best position for double penetration, best position for double penetration, fuck, best position for double penetration!” until she explodes, soaking the leather in a flood of unstoppable “best position for double penetration” release.