Looking for story suggestions

I've been reading ballbusting stories for years (I can't remember a time when I wasn't reading them) and I have came across a lot of sweet stories but also a lot of absolutely disgusting stories (like ones where girls castrate unwilling guys just because they think it funny or turns them on). don't get me wrong I'm all for a guy getting a ruptured nut or both in a fictional story if he literally asks for it or if it is an accident but if he is able to get them repaired is awesome because I'm into BALLBUSTING not CASTRATION so I'll get to the point of the post (sorry about the rambling I've read a few stories recently that started sweet and ended cruel and it has me on edge... and not in the good way)

I'm looking for multiple stories where the guy literally asks the girl(s) for ballbusting and even if the pain is too much for him he is having fun with the situation and gets to keep his balls at the end of the story (and if there are multiple stories he never actually loses his balls)
Any links or even just titles would be appreciated (even if I've already read it before you have no way of knowing exactly what I have read so I'd appreciate it anyways)
Thanks in advance