The metro car rocks gently, lulling its passengers into a state of disconnected intimacy. A careless hand, seemingly seeking support, lands on a generous bosom, lingering just long enough to feel the nipple harden beneath the fabric. The recipient stiffens, eyes darting to the culprit, but they find only a blank, apologetic face. The game begins anew, hands exploring, bodies shifting, as the metro snakes through the city, carrying its secret, writhing cargo.