SPRD-1026 - Mother-in-law obsessed with her son-in-law's massive member, Sumire Mihara

Sumire is excited for her daughter and son-in-law's visit. She offers to give him a massage, but gets distracted by his massive bulge. That night, she catches him masturbating in the living room, which turns her on instantly. The next day, with her husband and daughter out, she finds herself alone with the sleeping son-in-law and decides to make her move.