P.E. Class: Sweat from the Bloomers... (1998)

Name: P.E. Class: Sweat from the Bloomers...
Director: Masato Ishioka
Released: 1998
Cast: Aya Sasaki, Ai Komori, Riri Kuramoto, Kotoko Shiraishi, Akiyoshi Shibata

1h 18m IMDb

Three high school girls: Yu, Aya, and Sachiko. Yu is in a secret relationship with her friend's lover. Aya is a assisted dating partner. Sachiko gets along well with a boy at the warehouse. On the other hand, Yasumi, the female physical education teacher, seems to have an unusual relationship with Aida, a member of the track and field club. High school girls in bloomers and a female teacher are having a sexual feast in the school!