Sailor Uniform: Lily Lovers

Released: 1983

Drama, Romance
Two high school girls discover the pleasure of sex with each other until one of them chooses to be with a boy.
Starring: Natsuko Yamamoto, Kaoru Oda, Koji Mizukami, Hideaki Yada, Nobutaka Masutomi, Bun'ei Shō, Yumi Onozawa, Sanae Itô
Directed by: Hiroyuki Nasu
Written by: Hiroshi Saitou
Language: Japanese
Scenes
Two close (They are actually lesbians) female students (Natsuko Yamamoto, Kaoru Oda) are peeing and chatting in adjacent squat toilet stalls.
Screen Captures

Alternate Titles
セーラー服 百合族 (Japanese old title)
Sêrâ-fuku: Yurizoku (original title)
制服 百合族 (Japanese new title)
Seifuku: Yurizoku (DVD box title)
Sailor Suit Lily Lovers
Lesbians in Uniforms (World-wide (English title))
Yurizoku 1 (series title)