wetting unsanforized denim shrinks it. if you put it on wet it will dry skin tight because it will only be stretched as much as your ass is fat. but if you bend your legs basically at all you'll end up with horrendous knee bags.
most people stretch them back out after drying, but it's true that you'd want to shrink them less aggressively in that case. but these days if you want skin tight they've got synthetics for that.
There was clearly some change in the material culture of the BDSM community around the 90s such that the things that were matter-of-coursely adjectived as “rubber” before that were referred to as “vinyl” afterwards, I kind of wonder about that sometimes
Really I guess vinyl (in the 90s you'd still hear "PVC" but now that seems to have receded to the white pipes) replaced rubber AND leather to some extent
I wonder if that had anything to do with the popularity of the dominatrix as a trope
It certainly explains cybergoth fashion
Haha I should not have been surprised that my “write as if the 1998 internet was the apex of civilization, including the sex parts” approach would draw a community of so many people who were eager to message me in extreme detail about the step-by-step evolution of BDSM gear