Girls Of C64
Online resource of the history of Commodore 64 “Adult” material [NSFW]
Pretty much every type of media has been used for pornographic content, early home computers are no exception, despite the technological limitations. Here, you will find graphics of (mainly) naked women and some men, mostly crudely hand drawn or put together with text characters.
Just don’t expect anything sophisticated, either with the graphics, or the terrible humour.
Take a look (at your own risk) here