KSBJ-175 Cheating at home behind her husband's back, Mayuka Kitagawa

My husband's younger brother Susumu came for the first time in a while because he had business nearby. She is Susumu's classmate and has known her for a long time. For some reason, when I see Susumu, I want to play a prank... While chatting with three people, enjoy the thrill by touching Susumu's crotch with her feet so that her husband does not find out. She thinks it's bad if she finds out, so she gets up from her seat and tries to escape to the toilet. Susumu was relieved that he managed to get through this day without being found out, but...