When I was a young teenager, if my penis were stroked past ejaculation, it would have been unbearable. But then I read a book about training oneself to have more expansive orgasms that included instructions on keeping an erection after climax. i followed the advice, slowed down my stroke, and kept on stroking after orgasm.
Now, sometimes, I get a little sensitive on the head after orgasm. But nothing like I used to.
I also used to be hypersensitive on the top of the head of the penis. But I had my wife stroke concentrating on that without stroking the frenelum for a while. It drove the nuts-- the first time. I had a few other overwhelming experiences.
After getting stroked on the head like that like that during a hand job, about a year ago, I had one experience where I had my wife keep stroking after orgasm, and it was overwhelming, kind of like tickling, and I writhed. I held a pillow to keep myself from stopping her with my hand.
My wife won't tie me up. She considers that abusive, though I've trained her up to spanking and squeezing my balls hard on occasion. If I tell her to keep stroking after orgasm without mercy and keep going no matter what I say, she still stops soon after I tell her to stop. sometimes it is slightly 'unpleasant' or overwhelming and I'll ask. I wish she'd be tougher. A lot of the time, it's just kind of more boring than anything else if she strokes me after ejaculation.
She likes me to be on top. If I talk her into finishing me off on top, sometimes she'll squeeze her vagina tight and keep thrusting. That can be more intense than a hand job that continues. But if it is, I just wimp out an thrust with her to minimize motion, putting my hands on her butt to keep her down. I try to hold on to the headboard to keep from doing this, but I'll still thrust with her. I need to be tied down with a pillow under my butt so I can't move if we are going to do this.
So I've got a few problems here. The chiefest is, how can I get the sensitivity back in my penis post ejaculation so I can be 'tortured' in this way? I've had a little success in having my penis head overstimulated during a handjob, but the sensitivity wears off, and I have to be pretty horny for it to work. I'm looking for a solution other than 'Don't have sex for a long time." That's just not a satisfying solution.
Btw, have any of you who have gone for post-ejaculatory penis torture found that the sensitivity wears off if you do it enough? That your body adjusts to it?