Mother's buttocks being penetrated to orgasm in incestuous sex, Part 7: Shimazu Kaoru NEWM-093

Although the Shimazu couple were middle-aged, they still had a marital life and their relationship was good. However, while the husband's libido was still strong, his stamina had declined, and it always ended before he was satisfied, which troubled Shimazu. She decided to exercise to distract herself, so she started doing balance ball exercises. Just then, her son came over, and she asked him for help. To maintain her balance, she began to sway her hips, and her son couldn't resist kneading her buttocks. Shimazu couldn't help but gasp. "Does it feel good to have your buttocks kneaded? I'll make you feel even better with my penis," he began to assault her...