A sexy female college student from Nanjing is pounded like a pile driver by her athletic friend and receives an internal cumshot.

This film is a domestic self-timer erotic film, telling the story of a sexy female college student in Nanjing and her sex story with a friend from the sports school. In the film, the female college student is pounded by her friend like a cannon machine, and eventually there is a scene of internal ejaculation. The film shows real couples, self-timer of lovers, and cheating wives, making it an exciting self-timer work.