OK I'm just going to put this out there and see what you guys think. It may be that my physiology is somehow unique and that this is why my body responds this way, so I can't gurantee repeatability in all cases.
Anyway, I've always puzzled on how or where to broach this topic, but I admit that since being a young man I have occasionally (although quite frequently) used aspirin as an aphrodisiac. (And no I don't mean by giving it to my wife!) Through a chance discovery I found that taking a 75 milligram dose of aspirin several hours before sex massively increased the intensity of one's orgasm. To be clear it has a slightly differer impact on me than what traditional aphrodisiacs are envisioned to do, in that it does little or nothing to increase the pleasure or sensual nature of the overall experience. Rather it is just the 'end point' itself that is significantly enhanced.
I have never really mentioned this to anyone before, as I rather feared that it might be dismissed as being ridiculous (and no doubt some people will say this here), but since there is little harm in doing so, I suggest you try it before dismissing it out of hand. Due to not wishing to discuss the matter in the past, I can't say if a similar effect might be observed in female orgasm, but I would be very interested in the results if anyone tried.
Also there is a small proviso that the effect tends to wear off after a few days use, so that you might only be able to use it for two or 3 days, then take maybe a week off and then use it for 2 or 3 days again.
Moreover larger doses of aspirin appear to have no effect, so increasing the dose does not improve the experience.
I am genuinely interested if anyone tries this what their experiences and impressions are. Maybe I'm just a freak, but the difference for me is simply too profound to be dismissed as something imagined, or just some kind of placebo effect.