I just found out you can get too much of a good thing. I am talking anti-depressants and have trouble climaxing, even getting hard sometimes. So I tried one of those vibrating jelly masturbating sleeves. It was awesome. I was lying there literally at the brink for hours. Did not quite get there though. But it was incredible.
Warning...five hours hooked up to a vibrator is too much, at least for a guy. I did two hours in the AM and three more in the PM. For two days after, it felt like I still had it on. Every few minutes I would get these little clenching spasms like you get at the start of an orgasm, and then they would fade, and then start again. Freaked me out, but I was ok by the third day after. Love my jelly sleeve, but I will set a time limit from now on.
Any other marathon users...Man? Woman?
Some women, including posters here, report that they become dependent upon the vibrator after long use. No real studies on this but considering how many women have difficulty reaching orgasm, that beats the alternative.
i hate vibrators. i think they're too harsh and actually make me feel numb after only a couple minutes.
Lucky-
Try using a cheaper battery. It will produce less intense vibrations. Or even another toy. Vibes shouldn't cause you to be numb after only a few minutes.