Addiction & Tolerance

My wife and I have dabbled in a little ballbusting and SPH for years without much discussion. Then a few months ago, we decided to try transitioning to an FLR. Long story!

One of my rewards for her nightly foot rubs and completely my chores is that I get ball busted every night. I love it! At first, i could only handle a couple kicks before I would tap out, but now I think i've built up some kind of tolerance to it, because I can take as many kicks or punches as she wants to give me and while it hurts, it's nothing like at first.

Also, I think I'm becoming a bit addicted to it. Not only does she bust me nightly, but I find that I'm busting myself a few times a day. I'll see something that looks like good and I'll grab it and hit myself several times in the balls.

I've also discovered that I'm slapping my nuts in my sleep! I'll wake up a little bit and roll over to get more comfortable and then slap myself before I drift back to sleep.

Has anyone else encountered anything like this?