My first bust was in school, i would tease girls deliberately so they would kick/knee me. It was a fun experience. I distinctively remember the first time. I was teasing this girl pretending to slap her and for a while we were playing until she launched her foot square into my balls. I dropped to the floor. The pain was excruciating. To make matters worse when I was ready to stand up, she was helping me up and just as I got to my feet she kneed me and made me fall again. It was MAGICAL!
My worst bust was when I was 18. I was seeing this girl and she wanted to try something more 'kinky' so I told her she could try busting my balls. I thought that she would take it slow, test the waters and experiment using a few different standard techniques... I was wrong! It seems she did her research and decided to invite me over, where she enticed me into the bedroom, where I found the bed frame stood up. She then told me to stand on the bed frame with my arms and legs spread while she tied me to all 4 posts. At this point I was really turned on but concerned that I was going to be destroyed at the same time. She then asked me if I was ready. I said yes and then she proceeded to kick, knee, punch and squeeze my balls repeatedly until a little tear fell from my eye. I was powerless. I could not do anything to stop her yet it was the best thing ever! I suffered major bruising from that day.
I kept going back to her for a few months though, them stories are for another time :)
I'm quite a quiet lonely person. Web Developer by trade and secret bustee by night. Despite being straight I am more then happy to destroy some poor guys balls for them ;). I have a pretty good pain threshold and self bust all of the time.