Yuri's son has always loved his mother's big ass. This obsession led him to rub oil on his sleeping mother's ass and masturbate against it. Yuri herself has a strong sex drive, making vegetable masturbation in the kitchen part of her daily routine. Her son had caught her doing this. One day, their father, who had been away on a business trip for a long time, was coming back. The son, not wanting to lose his mother's ass, attacked Yuri from behind. 'Mom's ass is mine. I don't want to give it to anyone!'
