"Mother-in-law, I want to try an oil massage that helps with stiff shoulders and back pain, so can you change into this?" The son-in-law pretends to be Kokoro and wants to ease his mother-in-law's physical fatigue, but makes her wear hot pants that are very embarrassing for an older woman. He gives a naughty massage to the woman's body in hot pants that dig into her crotch and show her panty lines... her thighs tremble! The mature woman in her tight shorts that show both her underwear and her meaty buttocks moans lustfully.