Do you like... bondage?

[Tenalc13]

A demonstration of the traditional Kinbaku rope bondage was held at Kyoto University.
Higher education has never been so interesting

Spoiler: Start from 45:00

P.S.: The original has been locked, hopefully this video will not be banned.

 

[Succubi Games]

I remember when universities had courses on porn. Don't know if they do it anymore. It was controversial when it started.

 

[cobra]

I like something more like this.

https://e-hentai.org/g/1527334/4c7659650e/