Mai, a soft-spoken Japanese wife, offers her husband Yoshimasa an erotic oil massage, her hands expertly caressing his toned body and engorged cock. As she pumps him with her slick grip, Mai's curiosity leads her to Yoshimasa's untouched ass. She teases his rim, then slips a finger inside, exploring his tight channel. Yoshimasa's body responds, his cock throbbing as Mai finds his prostate, stimulating it until he can't hold back any longer, exploding in a powerful, oil-slicked orgasm.