Most if not all pictures inside scripts are from the web, and most of the time the source site logo is still on the picture. Sus it make quite good advertising for them, quite a win-win situation.
So consider picture galleries, you may even find the very same girl on some other pictures, if you're
used to her.
New pictures is considered as a plus for the quality of a script. But keeping some existing one is still better than publishing nothing
Last, there will be a new release of SexScripts shortly (today ?), with a web-gallery-based importation ; you put the URL of the gallery, it downloads all and starts a script.