I was left in the care of my big-breasted sister, a relative of mine. When I was sleeping, she licked my genitals. After that, we took a bath together, and she washed my genitals with foam. She rubbed them with her breasts and soft ass... is this really a wash? I applied oil to my sister's body and massaged her. When I pressed my trembling thing against her genitals, she trembled. I wonder if it was okay? At night, I put my genitals inside myself in bed.