Aristide Buratti is a wealthy grocer married to attractive Valentina. Although they seem to have a happy marriage, Valentina feels herself culturally inferior because she is a high school dropout. Despite her husband's objections, she enrolls at a private boarding school.
The wife (Carmen Russo) goes back to school and fends off the sexual advances of a couple of students and a professor, who each comes to her dorm room to try to fuck her. Add her husband to the mix because he also sneaks into the boarding school in an effort to have sex with her.
At 54:58, the students egg on the wife to kiss each of them as a reward for subduing her disguised husband. She kisses the first two on the cheek and forehead but the third one, the most handsome one among them, goes for her lips. She kisses back and they make out for a few seconds in front of the others. At 1:04:09, she has a light petting session with the same kid on a couch.