The grass is always greener on the other side... Three sisters who are unhappy with their boyfriends decide to try "boyfriend swapping" once... The eldest sister, Hibiki, shows her maternal side to the mama's boy, gently guiding his dick and making him cum with a spider cowgirl position. The second sister, Yui, is interested in persistent sex and is defeated by the man's persistent cunnilingus and thrusts! The third sister, Suzu, enjoys beast-like sex and is devoured all over her body, leaking with pleasure! After enjoying the boyfriend swap, the three sisters all tease the masochistic man and milk him of his semen!