Touching the ass of a beautiful woman in the street.

The idea was simple but no less existent, they were to look at strangers, ignore each other in the street and do all kinds of things that in the reality of their room were too painful to do. That's why every so often she would put on that dress and go out just leaving a note of the streets she would frequent.  HE would wait a while, no more than 5 minutes to follow the same path, then there was no escape, he would intercept her at the most populated corner, and without giving her room to think about it, he would give her a little smack on the butt. She would turn around frightened and ready to launch herself into a race that he would win.