When a guy shows that he has a clue about female anatomy, that's a nice thing. And son threesome with two guys, please but without touch fears, ideally both hot on each other, that makes mood.
Turns Off
Guys who present themselves to you in supposed penis pride with a math task and then can not find your clitoris. I DO NOT KNOW WHAT 18x5 IS, JONAS! I'M VERY BAD AT MATHE!