My boyfriend got me into ballbusting

My boyfriend told me it would be nice to share the story here, I'm not a reddit user so idk if I'm doing it right

So, I date my boyfriend for around an year and half, and a few months ago he actually introduced me to ballbusting, he always used to ask for light slaps on the balls during sex, or for squeezing them, I always thought it was a bit weird but it was fine, until a few months ago when he asked me to literally PUNCH his nuts before sex, I was really shocked, but he kept saying that it was fine, that he liked it and so on, I was scared of hurting him but I did it.
It actually felt so nice and weird at the same time, I had never punched someone in the balls like that before, and for the last few months we are trying to increase it, with a few kicks, punches, slaps, I notice that the more and more I do it with him, the more I like it, it makes me so horny that I want to do more and more, but he can't handle that often.
Until he showed me a few communities about ballbusting, that is when I first heard about the name and about how it is a common fetish. I got fascinated, I thought what I did with my bf was painful but I saw so many things around here that looks WAY more painful.
And I like it, I don't know, seeing it gives me a really interesting feeling, I'm now really into searching more about it and having new ideas to try on my bf in the future. I was not expecting to get so into it, but now I can't stop thinking about it.