HBAD-740 — Ruka Itoi: My son's girlfriend has a short haircut, big breasts, and a baby face, and her body is so sexy I couldn't resist.

My son's girlfriend, Ruka, has been staying over at our house a lot lately, and I can't help but be curious about her. She has a cute face but a surprisingly large bust and a great body, and she keeps flashing herself as she wanders around. Whenever she stays over, I can always hear her having sex with my son, so it's hard to resist the urge to peek... Then one day, after she had sex and came to take a shower, I accidentally saw her naked in the changing room...