I’m quiet, shy and reserved and 100% straight with a preference for F/M. However, there is something hot about a dude going for the balls, especially if he has no reason to other than just wanting to crack some nuts.

If it helps to get the above ideas flowing, I’m in the banking industry 😉

Some asshole playing sports and intentionally “accidentally” kicking, stomping or grabbing a pair of nuts?
A guy getting in shouting match that may lead to a fight? Some crushed nuts from a work boot should resolve that nicely before it begins.
A bully just doesn’t like that guy’s face? *squish*

Stories and movies/tv shows where the ballbusting is malicious and nonsexual are fantastic, for instance. Obviously not in real life, but… If you come across a M/M story with malicious BB and no sex, I’d love if you let me know!

Going along with the “non-consensual/malicious” preference for the fantasy, I also love threats of and joking about permanent damage.

Also, let’s say 98% straight, because I really like a pair of shaved balls hanging outside of pants. (It would really suck if you had your balls hanging out and someone in a bad mood came along…)