May be you not there is not only model for underware a dresses, but there are specialized models for "feet". Feet may appera in photos, advertisements, books and not all feet are equally "photogenic".
Some foot models have their own sites and video. That's incredible,but it's true. And on YouTube you can find many of them...
Other articles: Feet rubbing and lotioning video (long), Video of the most sensual feet massage, Nice Video of a Foot Self Made Massage with Lotion, Foot model video: Leggy Pauline
