Havent seen this topic and GAgambler posted something that made me think. Who or what was the worst "bad judgement" sexual encounter you have had? Ive got 3.
1. My cousin. Post wedding. She was in heat. I was handy. Trully bsc.
2. My sister in law. She was living with us post divorce. I thought a bj and hj might be proper rent. Cooler heads prevailed.
3. My exes super hot, super horny BSC niece. Almost got caught finger banging her.

Daughter was a lil younger than I. I was a lil younger than the mother. Got booted from the group.  
Almost  with a cousin til we figured out we were cousins. Long story.

is to ask yourself why none of these women wanted to repeat with you.  Maybe you know already.

Called a former business associate and his wife answered and said he passed away.  We met a few months later.  She looked great and was 20+ yeard younger than him.  Felt guilty the first time but saw her several times. Widow sex
She was not taking no for an answer.

Fortunately, I never had such close encounters, but I do recall a fling with one BSC civie that ended very badly.