Blonde gal Riona-chan is invited to a friend's home party. As soon as the party begins, Riona-chan gulps down the champagne and is in high spirits, but the alcohol has been laced with an aphrodisiac. She gradually starts to feel dazed, but her erotic switch is on. Riona-chan gets fucked in the sexy costumes the men ask her to wear, and it feels so good that her eyes roll back!