Forced orgasm basically, but with some sort of multiplier, whether by means of medicine, machine, mind manipulation, magic or more.
Pretty common, but quite hard to search for specific examples, so I'll dump pages that feature it as I find them.
I only have doujin because it needs a bit of exposition, but if you have images that imply it post those too.
>>7030937
Time stop context here.
Skipping a few pages.
This is a good one, lots of things added together.
So >>7031464 neural multiplier
>>7031466 aphrodisiac
>>7031475 no fainting
>>7031478 more aphrodisiac
and implied repetition now.
>118 hours later
And saved up stimulation released all at once.
Simpler one but it's still great.
Crimson does this sort of thing a lot, but it tends to be over the course of 100+ pages.
Not translated obviously, but it's fairly clear.
Aphrodisiac.
I gather this is some sort of brainwave monitoring device which blocks orgasms.
MAGNETS