I've seen two videos so far that show something I have a question about. Both were Dom HJs where the Female chokes the scrotum above the testicles and pulls them downward while she completes the HJ. The interesting thing is that the male does not ejaculate! He obviously is having an orgasm, and the Dom remarks during the whole time with a laugh that his O is not pleasurable.  Two different videos, actresses and producers; same testicle choked HJ.

What is happening here? I've had my penis pinched during orgasm (only three times, twice unsuspecting, thought it was kinky), according to Wikipedia the ejaculate backs up in the bladder, but how does this technique of choking the balls off and pulling them downward stop the ejaculation? Where does it go?  Why is it not pleasurable?  What is it called?

Tried searching the Internet, no answers, so I'm trying here.

Ahh, Fortunes, I LOVE ruined orgasms, though I admit few clients request such a thing.

the guy orgasms but didn't ejaculate?  That's technically a dry orgasm...  

Dry orgasms are sometimes labeled as ruined orgasms.

orgasms sometimes are not pleasurable.. they can be very painful.. imagine getting blue-balled x 20..

for the person doing it, it is fun!