Penthouse.com has such a thing. Here's the text from the affiliate area setup:
"This form will allow you to create an RSS feed (Real simple syndication feed) which you can use to syndicate a list of galleries to include on your site, or that allows surfers to bookmark a constantly updating list of galleries, subscribe to them through services like My Yahoo!, RSS readers and more, all with your referral code! You can use this tool to instantly create pages full of galleries that update every time we add new hosted galleries. Using this tool will allow you to create webpages that update for you, without any maintaining and you get 100% credit from any sales."
You can get to this page through the Penthouse Affiliate area (
sign up here), then click "Promo Tools" then "Banners" then "XML and RSS Feeds."
If you have any questions, please contact me.