MUKD-398 My lewd little sister, Ai Mukai, tempts me. She skips school all day to have non-stop orgasms and secret internal sex with me.

Ai Mukai, who loves me too much, has been provoking me by pushing her buttocks since morning. She was puzzled at first when she started playing pranks on her, but she gradually widened her eyes and asked for "more...". She wakes up and cums in her mouth, cums in her uniform, masturbates in the bathroom and cums on her face, and finally kills her voice so that her parents don't find out and cums in bloomers again. She loves a slender body with a moderately fleshy feeling. She stays in her house all day long and has sexual intercourse.