This morning, I read a story (I'll try to find the link) about a couple getting engaged. But get this. The man was the girl's high school math teacher. He's seven years older than she is. They began their relationship when she turned 21, so he was 28, I gather.
Legally, I guess there really isn't anything wrong with it. And apparently they didn't have any type of relationship while the girl was a student, but.. Idk how I feel about the creepiness of it all.