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My sister and brother who came on a trip. My sister fell asleep while relaxing with a kotatsu, so when I tried to wake her up, I was soaked in sweat, probably because the kotatsu was hot! My skin is shiny due to side sweat and chest sweat, and I inadvertently erection due to too much eroticism! If I couldn't stand it and sneaked into the kotatsu and touched my ass and dick, there would be stains on my pants! If I take off my pants and make direct contact, my sister will wake up ...