DVDMS-432 A woman in a short skirt provokes her friend's older brother, then starts a servant relationship after a bathroom creampie

A sister's friend comes over and her panties are visible, whether on purpose or not. The narrator watches secretly, but the friend notices and calls him out, then mounts him in the bathroom for a vaginal creampie. From there, she takes control and his servant life starts, filmed in Nerima-ku, Tokyo.