すんドめ3 (2008)

Translated title: Sundome 3

The high school boy and girl from Sundome 2 continue their sexless relationship in which she is sadistic and he is masochistic, but one day there is a rumour at school about her having a relationship with a different, and older, man. The boyfriend feels as if his girlfriend is hiding her relationship with the older man.

Country: Japan

Director: Daigo Udagawa