If you've ever seen a picture of a food item that's so fresh and luscious that your mouth waters, you've experienced the throes of food porn. Unlike that other kind of porn, food porn is completely safe for at-work viewing. That's because this playful, tongue-in-cheek photography doesn't involve sex or even people--just good food.

The demand for food porn is larger than you might think. There's a Flickr group dedicated to user-submitted photos. FoodPorn.com provides a cheeky take on the trend, using photo category titles you'd easily find on any porn site to categorize their images. Bloggers have taken a stab at photographing their own food porn, even initiating 'Food Porn Friday' memes, and FoodPornDaily provides a revolving super-sized food porn photo for single-click perusal.