Maria Bellucci movie

[orixa]

Maria Bellucci.....Any idea what movie I am referring to? All I can remember is that it's in a school, she giggles alot in the movie, does a group scene with a janitor who's been spying on the girls at the school, has a solo toilet scene, and gets sent to the principal of her school and blows him....I have no idea what film it maybe...it's older though. Any help would be appreciated!!!!!!

[Walter Burns]

Could it be L'Institut du vice?