ah… off limits… what fun! When I was 33 and doing the paperwork for my divorce a girl in my Sunday School class who was 18 at the time managed to get past all my defences. Over the course of half a year we built this great friendship and I totally fell for her (and visa-versa). But good Mormon guys don’t date the 15 years younger girls they teach Sunday School to right? Especially if they aren’t divorced yet… oh… but… the… temptation… talk about forbidden fruit.
and it was the same thing on her side… I was absolutely, completely off-limits. I was friends with her parents. They could never know that it was ME she was talking to everynight for hours.
she was a really good kisser too. 
those were fun times.