This was the first of several "Sexy Schoolteacher" movies Edwige Fenech appeared in, and also the first of a whole slew of "teenage" sex comedies featuring annoying Italian buffoon Alvaro Vitali as the world's oldest looking but, at the same time, most immature high school student.
The movie starts out with material not quite advanced enough to be sophomoric. Three "teenagers" (the main protagonist looks to be about twenty and his friends, Vitali and another guy, easily look thirty) are doing what male teenagers always do in these kind of movies--trying to get laid. They get nowhere with the girls their own age (other than spying on them in the locker room as they rub lotion on each other's boobs). They then decide to go after "older" women, which leads to a lame running gag where they spot a particularly attractive female body part only to find out it's attached to a grotesque woman or cross-dresser.
Not a moment to soon "sexy schoolteacher" Edwige Fenech shows up (although she is not really a schoolteacher but more of a tutor the protagonist's parents hire for their easily distracted son). These movies were really a step down for Fenech from the gialli she was making with her paramour/producer Luciano Martino and his director brother Sergio in the early '70's, but her presence in these kind of movies was a real step up for the movies themselves. Fenech was as beautiful and frequently naked as Gloria Guida, the other regular female star of these kind of films, but she was also a genuinely talented comic actress. It is very hard to believe a woman that looks like her would be so unsophisticated and respond in any way to the clumsy advances of the homely and idiotic male protagonist of this movie, but I guess that's half the appeal of these kinds of flicks, isn't it? This is a terminally stupid movie, but it is redeemed somewhat by the presence of Fenech.