The son's wife notices that her father-in-law is getting an erection as he lustfully looks at her breasts and panties. The three sexless wives show their husbands that their sex is not complete, and grab their hardened dicks, saying, "Father-in-law, you have to take responsibility." The father-in-law, who is as virile as he is despite his age, devours the young wives' big breasts and big asses, and they violently clash in their sexual desires.