Take your pick from two art-porn mashup sites posted at Boing Boing over the weekend: a gallery of French smut photos with silly captions on them, or a gallery of manipulated photos which look like they should be dirty, but aren't - or at least aren't anymore.

Pornotunning (gallery @ membres.lycos.fr)
Make Porn Work-Safe (Not Safe For Work)! (galleries @ somethingawful.com)
Previously: SFW Porn, Hot XXX Thumbnails