Somebody has already done this - (original was deleted so had to pass through a third party cacher) https://www.unddit.com/r/AskReddit/comments/1f607z/comment/c...

Except I don't quite buy that it has actually been done, the post reads more like somebody's fantasy.

Knowing some people who have done similar things, it's perfectly plausible, and doesn't read like fantasy to me. You're getting a glimpse into a niche subculture, like skydiving or rock climbing.

Not saying it's infeasible, I just don't believe that the person who posted that bit actually did implement it.

What a bizarre hobby

…using a well-instrumented sex toy to calibrate an orgasm PID loop.

This is hilarious and genius.

A number of Lovense toys come with accelerometers. At least one of them also has pressure sensors, though that one is pretty laggy in my experience.

There also is Nogasm which uses a pressure sensor to detect pressure changes in an inflatable buttplug to detect an Orgasm.