My wife is a teacher (27), so I asked her option on the situation. Typically these teachers have some other issues going on in life, they cross the line and tell the kids about their personal life (strike one). Kid's some what of a smooth talker, the relationship develops because they spend hours together of the course of several months, the kid is young and easy to talk to. My guess is some issue of rejection, whether current or in the past (rejection in high school). But why not pick up any guy at the bar you want and bang him over a 14 year old kid?
I'm still trying to figure out where these hot teachers are coming from? They weren't around 5 years ago, that's for sure.
Guess that makes sense.
And yea, never had a decent looking teacher all through out schooling. Lucky bastards.