Mother-in-law, much better than my wife ... Mayumi Imai

The mother-in-law is a woman who visits her son-in-law in Tokyo. She is fucked by her son-in-law, who finds her more satisfying than his own wife. The son-in-law performs various sex acts with his mother-in-law, including oral sex and intercourse from behind. The central kink of this movie is the taboo relationship between a mother-in-law and her son-in-law, with the son-in-law preferring his mother-in-law over his wife.