i saw this movie once when I was a kid, guessing it was Russian but I had no idea what language they were speaking.

i only remember a few of the following scenes:

young boy is going to school, his friend shows him 2 dogs on the street having doggystyle sex and saying something like that’s how grown ups do it.

they save up some money and pay a student to show her vagina, she opens her legs on the seat outdoor but incidentally, they couldn’t see anything as it was only very brief and she didn’t quite show anything. She then walks away and the young boy and his friend don’t say anything except “I didn’t see it”.

the young boy peeks at an elder family member having sex one late night.

the ending portrays the young boy dancing with an older, or if I’m mistaken, a taller girl whom he likes. Some European music fades in and cue in credits.