A group of three college girls secretly having sex on a dimly lit night bus. They seduce their male friend (who has a girlfriend) and take turns fucking him! They press themselves against each other in the narrow seats, thrusting slowly so that no one notices! They have creampie sex without making any noise! After arriving in Shinjuku, they head straight to a love hotel! They have an intense cheating harem foursome in the spacious room, moaning loudly!