My mother-in-law, Mari, bought a new swimsuit before summer. I was standing in front of my girlfriend's mirror feeling excited and doing a swimsuit fashion show...then her son-in-law Haruto came over. Noticing Haruto's completely captivated look at Haruto's more glamorous body than she imagined and her risqué bikini appearance, Mari mischievously requests an oil massage. My mother-in-law's voluptuous, sexy and stimulating body that I touched for the first time