Sister-in-law was taken away ~ tricked and slept with by younger brother ~ JUX-388

Rina, a married woman living with her younger brother and his wife, is shocked to see her sister-in-law, Kaoru, bringing a strange man home one day. Rina is horrified to see Kaoru's husband, Koji, and the stranger engaging in sexual acts. Koji, who already knew about his wife's infidelity, suddenly pushes Rina down, saying he gets excited when he's being sexually assaulted. Having never had sex with her husband, Rina's body unconsciously begins to crave his penis…