When Hiroshi stops by the house of a friend he met by chance, he comes face to face with his beautiful mother, whom he has long admired. Hiroshi, who visited again to retrieve his forgotten things, witnesses a bewitching and rich-bodied fifty-something mother and son swallowing each other's genitals and engaging in forbidden acts. Hiroshi thinks about the shameful appearance of his beautiful fifty-something mother who burns in his eyes. A fifty-something mother who drowns in lust and desires pleasure exposes her wet herself and invites Hiroshi. - A fifty-something mother who shakes her big breasts and big buttocks and rejoices!