Wow, blowjobs from female vaginas sounds great, but... grabbers?
In duckduckgo, enter: "Jill's world"+"ripple gripping"
The "grabber" is probably trying to simulate ripple-gripping.
There is a tutorial, but it basically involves developing certain muscles and the ability to control them a certain way using advanced variations of Kegel exercises. Apparently regular sex is to masturbation what ripple-gripping is to sex. Jill is a ballet dancer who trains and manages high-end escorts for the very rich and caters to some real freaky shit. She even casually details a few incidents where she had to help remove and discard the bodies of a few escorts (who die occasionally performing the extreme stuff) since some of the kinks involve underwater edge-play bondage with SCUBA gear and of course sometimes "shit happens."
Incidentally, that blog is the single most disturbing website I've yet found, ever. And that is really saying something. It details things (in text, not graphic imagery) that I did not know existed from an insider perspective that seems utterly bogus if not for the volume of material involved and how uncannily consistent it is. Most of it is pointless fluff and garbage, but some posts are truly mind-blowing and not in a sexy way, more like a "holy shit how have you and most of those around you not been arrested yet?" way. Then I remember who she caters to.
Edited by TVCasualty, 18 February 2020 - 04:14 PM.