electro stimulation
 

anyone try one of these if so where do you buy them

Curious about that myself
 

Yeah - I'd like to know that too. Or at least find someone close by to show me the ropes with estim (or tie me up with the ropes and show me estim)....

I bought a TENS unit online, but never acheived hands free orgasm, which was my desire. For the first few minutes, I would get a huge hard on, but after that, it was too much stimulation and I would lose it.

Now if you want to use it for S/M play, then it works well. You can make it feel like someone is beating your nuts with a drumstick!