Three Chubby Guys
Well, it could very well be, as jo made a lot of research on chinese culture to play the role of a panda warrior in ancient china, and he had the impression that many of those exoteric texts described nirvana as a never-ending orgasm.
Die Role - Ch 1
These notes say it was rumored to be a gift created at the behest of a hedonistic young prince in ancient china, to cause their favorite concubine to be... more diverse... in the pleasures they could give," mister chen explained.