We sneak into a swapping party held somewhere in Tokyo. Amateur ladies get excited as they piston fuck other women in front of their girlfriends, and on the other hand, they get pleasure from being watched as they give deep kisses and blowjobs to other men in front of their boyfriends. We also have footage of a group orgy going wild in a bar as an extension of a strip game. At first, they are shy about the group play that they don't usually get to experience, but with the help of alcohol, their bodies get hot from their female friends' deep kisses and moans, and they start wanting a cock themselves.