Can this happen to a guy after being hit in the groin?

Several months ago, I was attacked while walking back to my car at night. Long story short, a drunk guy started catcalling and following me. I panicked, took off my heels, and started running toward my car. He managed to catch up to me and grabbed my wrist. He was wearing tight jeans, so I aimed right at the zipper in his crotch and kicked it with the ball of my foot. He grunted and doubled over with this look of shock on his face, but he didn’t let go of me. I knew I didn’t miss, but I figured it wasn’t hard enough because I was barefoot. So I kicked him again and this time he let go of me and grabbed himself. That’s when I noticed that liquid was dripping down his pant legs and his crotch area was becoming soaked. I realized he was actually peeing himself... I was able to get the hell out of there while he was busy wetting himself and reported the incident to the police. In all my years of taking women’s self-defense classes, I’ve never heard of an attacker wetting himself from a groin strike. Is it normal for a guy to do this after being hit in the groin or did I end up damaging something “down there”?
Can this happen to a guy after being hit in the groin?
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