Nymphomaniac teacher shows student how to use a condom

A lonely teacher uses her students for her fun. She tells them that this is a sex education lesson so that they can see and feel their cocks. When she comes to another student, she sees his big cock and understands how lucky she is. She finds it hard to hold back and goes for this taboo. She sits on his big cock and fucks him, but this is not enough for her. She takes off the condom to feel it for real.