My ballbusting past and the hard busting I got last night

So to tell you a bit about myself. I'm in my mid 30s, and my wife and I have been together for 16 years, and been married for 11. We were high-school sweethearts that stayed together and never broke up or separated. We lost our virginity to each other and have only been with each other. But for some reason, ever sense I was a little kid I was fascinated by seeing women hit guys in the balls and always wanted one to do it to me. Some of my friends would do that "nutshot" thing boys will do to me sometimes, but trust me it did NOTHING for me. So I always found it weird that I wanted a woman to hit me in the balls. I remember even some of my earliest sexual fantasies were of women choking me and hitting my balls. I eventually confessed this to my wife after a couple years of dating, after I was picking on her and she elbowed me in the balls for it. Later I confessed I liked it and would like her to do more. She's a sweet person, and isn't dominant whatsoever. She was hesitant to, her elbow was very half-assed thrown and she was even surprised it connected, because she REALLY didn't want to hurt me. Despite the fact that that's what I want. So at first she would punch my balls occasionally, or give me a quick knee or 2, but that was it at first. Over the years she got a bit more comfortable with it the more I assured her I liked and enjoyed it. She is a giver in the bedroom, and likes to please me, so if that pain is pleasure for me she'll give it a try. Sometimes when I get her REALLY worked up, and I can get to go pretty hard. And she always gives me a good birthday beating if I ask. But usually it's just a few punches or knees during sex. She tries to squeeze them, but she's not very good at it, and doesn't want to try to pinch them between her fingers because it scares her. God that's awesome! I did get a pretty good beating last night. But last night we started out kissing and rubbing on each other. Then she whispered in my ear "what are you wanting tonight?" I asked her if she would be willing to be extremely rough with me tonight. To keep my hard, and give some minor pleasure breaks from the pain, but to really just go to town on me like she hasn't in a while. She said "if that's what you want I'll do it" and I practically begged her, and told her to make me do whatever she wants me to do to her as well. She started kissing me and then climbed on top of me, grabbed my hands and pinned them above my head on the bed. Then she started rubbing her tits on my face and knee on my balls. Then she smashed her boobs down on my face, smothering me, and started ramming her knee into my balls HARD. She would pull up and give me time to breath, but to pull up she would push down on my shoulders and dig her knee harder and deeper into my balls and started grinding it. Then she would stuff her boobs in my face again and start ramming her knee into my balls again. She repeated this 2 or 3 times before she let go of my hand came down and started making out with me. Then she traced her tongue out of my mouth down my chest, bitting along the way, and put my dick in her mouth and started giving me a rough blow job with teeth. Then she sat up between my legs, spit in her hand, and started rubbing my dick until I was rock hard and getting close to Cumming. Then she stopped and started punching my balms hard. She would give me 4 or 5 hard punches right in a row, then give my cock 4 or 5 strokes, then punch my balls 4 or 5 more times. This went on for a bit until I was almost worried I couldn't take any more. Then she gave the punches a break and reached down, got a really good hold of my balls and just started squeezing then and rolling then between her fingers. Then she stopped grabbed my dick with 1 hand, cupped my balls with the other, and started giving my dick some quick hard jerks, making her wrist collide with my balls. God that felt good. She did then for a while. Then she grabbed my balls and told me to finger her. As I was fingering her started squeezing and punching my balls. The closer I brought her to orgasm the harder her squeezing and punching became. Eventually she was in too much extascy to punch anymore, so she just grabbed them and started squeezing them like she never has before and it took everything I had not to whimper or make a noise or she would have stopped. Shortly after she climbed off me, kneed my balls super hard, and pulled me on top of her and we fucked like crazy. God last night was one of the best busts she's ever given me.