The big-assed wife, Tsukino Luna, makes her appearance in the fourth installment of the Twisted Couple series! The wife is definitely having an affair. The thing she hates the most is having sex with her husband. She pretends not to know or notice anything, and dares to ask for marital relations. The wife, Luna, acts and says that she doesn't want to, but as a married couple, she can't strongly refuse. She gets very excited about having sex while he complains and glares at her... and then she quietly cums inside him. "Because we're married, after all."