Was in “Does your mother know” in SF about 18 months ago and I saw an elecrostim /vibe wand toy called “volt” by cal exotics.
I got one. We used it a lot for double penitration. It became the most frequent flyer of a large pile of toys. Please note that the manufacturer says not to put it up your butt. I guess we’re bad.
You can have either electrostim 1 to 5, or 1 of 8 different vibe settings or both.
We did a lot of vibe, or vibe and electrostim, but it was rare that we did just electrostim
Bought a second one to have one in each hole, or we’d each have one in our butts while we 69, or we’d have both have them in while we one of us was giving the other head.
I’ve fucked her several times with it vibing my butt to great effect. I personally find something vibrating in my ass can be distracting, so it’s not super regular.
Recently I’ve been toughening up the old butthole, and I can stuff one in without prep.