Testicle play?

My BF says that his stones get bigger from not ejaculate. So the last time we had sex I played near them a lot. I yanked on them and stretched them out and squeezed them and hit them and pulled them. He didn't enunciate anything, but did ejaculate. Do guys like this?
That sounds like it causes intense headache. Squeezing and pulling on them? and you certainly love scrotum's.. well the conclusion is he get off on pain testicles are sensitive and no other guys approaching it
It feels good in reason. If bf ejaculated, later he must have liked it.

"Stones" don't catch bigger from not ejaculating, they stay the same size. Sperm cell are all that accumulate surrounded by the testicles, and they're microscopic, so no matter how many are present, it won't affect the size of the testicles. The juice semen determines the volume, and it is produced elsewhere.
Answers:    You sure are asking a lot of question.

Yes, I also love extreme "testicle" play. There is risk in it though. If you play with them not easy enough you take the risk of possibly doing long occupancy damage or you might cause atrophy (castration) of one of them. Be well thought-out!
well the conclusion is he get off on pain testicles are sensitive and no other guys approaching it
I don't like it. Only rubbing, licking etc. Anything more than that can be painful. yes but dont ripp them out for god's sake.