Well, she used a TENS with 4 electrodes. One was directly on the fernum (the male clit right at the underside of the cock on the uretha near the crown.) It's matching electrode was a metallic anal plug (touches the prostrate) The other pair are placed uder the balls and on the top side of the cock near the base. The three cock and ball electrodes were held in place with a leather cock and ball harness.
At low power it feels like a nice vibrator just a tiny bi tingly.
At medium, the "vibrator" is stronger and it feels like a gentle "clamp" on the cock.
At high, the "clamp" grows teeth and it feels like its "pulling" on the insides of the cock and still vibrating even stronger.
At full power the "clamp" has bitten down hard like a pit-bull and the vibration feels like my cock was being fried. At this point I felt it begin to "pull" the sperm out of me. No choice. It hurt like hell, but felt so good to cum that hard. All she did was turn the dials.
No effort on her part beyond putting me in cuffs and restraints.
Korg sends