As a connoisseur of obscure Internet content, I can fix you up with some prime C64 smut right here and now. Behold a marvel of NSFW rasterization: http://www.heechee.net/c64/girls/
I've built and operate search.marginalia.nu, it's designed to dig up esoteric crap like this.
Part of the work is also identifying and blacklisting spam results, which means I have to do a lot of searches for casinos, hotels, drugs, porn, locksmiths, cryptocurrencies, escorts etc. This site cropped up during such an inventory.