I'm into CBT, looking for hard hits to cock and balls, more pain. How can
you know how extreme you can go, to avoid permanent damage.. until you've
crossed that line, how can anybody know?
-Steve
Basically, you can't. Pain is the body's way of alerting you to danger and if your junk is getting whacked, you'll feel it in a big way. That's your reproductive system that's getting messed with and your body is on autopilot when it comes to protecting those things that keep the species going. The more you need a particular body part to procreate, the more pain your body gives you when that part is in danger.
Unfortunately, for those guys who enjoy that intense pain, you do so at a substantial risk, since there's no way to really know how much is too much until you go there. The balls can take quite a bit of abuse, but if they do get damaged, it's almost always a trip to the hospital. Those things don't heal themselves if you get beyond a bruise. A ruptured testicle will spill blood into your scrotum, which can cause a nasty infection in addition to unbelievable pain.
The balls can be squeezed fairly hard and they can be handled roughly or even smacked lightly without too much worry. However, sharp smacks or hits that slam the nuts against the pelvic bone are the most likely to do damage. If you hit them, choose an implement with a bit of cushion to it, like your fingertips or a toy rubber ball with a handle attached (I made one with a rainbow-colored soft rubber ball and the handle from a wooden spoon, both items bought at Target for a total of about $3). Also, if you plan to smack them with more than a light force, let the nuts hang loose in the sack as opposed to tying them up and holding them still. The mobility of the nuts in the sack allows some of the force of the blow to be absorbed in the movement, reducing the chance of injury.
I'd say that to be on the safe side, rather than opt for more extreme hits to your play package, look for new ways to cause them discomfort. Perhaps the variety will satisfy your needs as much as extra intensity would have. Experiment with electro - you can really, REALLY cause some pain by e-stimming your eggs, without nearly the risk that hitting them would create. Also, get a rubber glove and rub some max strength Ben-gay on your nuts, then beat off using it for lube. Pay particular attention to the head. After you've shot, you'll have a new appreciation for how sensitive your junk is right after climax. Just make sure that you've washed it off really good before your partner wants to blow you!
Daddy
