You're a little off the mark here. This was sexual harassment of a minor. Not about the nudity. I've seen plenty of dicks before and the sight of a rented pair of pants doesn't exactly cause me fits. But I'm still creeped out by this kind of behavior. It's uncomfortable and awkward. They've invaded your space and gone sexual without your consent. In this case, that boy was literally trapped in an enclosed space with an adult acting out their own fantasy regardless of how the boy felt about it. He didn't know how to respond or what she might do next.

It's fucking creepy.