Yuka is a mother who is happiest with an ordinary life. While she is preparing dinner and waiting for her husband to come home, her son appears and starts playing with her body. He sucks her breasts, lifts her skirt, puts his hands inside her underwear, and joyfully inserts his fingers into her vagina, stirring it around. Yuka's expression gradually changes from that of a mother to that of a female, and she takes her son's cock into her mouth and unconsciously moves her tongue inside it. The mother gets creampied during a deep throat blowjob. The son plans to rape his mother in front of his father today.