The son, who has no money to go to a brothel and no girlfriend, is sexually frustrated and becomes interested in his middle-aged mother's ruined body. He peeks at his mother's panties and touches her buttocks. Gradually unable to contain himself, the son jumps on top of his unsuspecting mother, licks her neck, fondles her breasts, and finally kisses her...Surprised by his son's tongue-entwining kiss, the mother is unable to resist and her mouth fills with saliva. Feeling her vagina getting wet from the deep kiss, which has been a while since the last one, the mother lets out a lewd moan, "Ahh..."