A normal well-groomed woman, it's not like she can afford to fuck on the street for money and without a condom! Of course, I have fucked on the street, but of course with a condom. Even if you trust your partner, you're still getting laid on the street. I think in the cold and in the street it's not particularly pleasant!
The teacher is pretty advanced - letting students fuck in front of her and giving her advice is cool. Sure, the student was a little shy at first, but that passed quickly. I, too, think we need hands-on sex lessons, then it will be proper and safe. And still the guy cum on the boobs of the teacher - after all, the students have to somehow thank her for teaching them.
I would too.