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