So I got in touch with this online Mistress, Not a professional, just someone who likes do dominate men when she's in the mood and has the time. 

I mentioned to her that I like BB/CBT/castration fantasy and we talked a bit about it. After a while, and to my surprise, she said that was happy to "test" me and give me CBT instructions.

It started out slow, like tying balls, slaps, etc, but as the instructions got harder, it didn't take long before I started to "regret" my decision and I couldn't keep up.. Like, literally. 

After I started to "fail" on the instructions she was actually quite clear that she wasn't impressed, and even mentioned a couple of guys she knew that would've complied 100% with the instructions I was given (which was a bit of humiliation I must assume). 

Afterwards she told me she would love to try full force ballbusting on a guy or trampling, without safe word. 

Although I must say that it was quite cool, not sure if I will try again lol

Has anything similar happened to any of you?