In the online foot fetish community, The Pose refers to a girl (or guy, if such is one's desire) lying on her stomach, facing the camera/viewer, with her feet up in back of her. The soles of the feet are showing, which is of interest to fetishists who enjoy the bottom of the feet. In The Pose, the feet may be crossed or uncrossed, stacked, side-by-side, one up/one down, soles skyward, soles scrunched, toes spread, etc. The Pose is one of the most requested positions in foot fetish history, and can be found in droves on such fora as Yuku's TheMousepad, Wu's Feetlinks, and others.
"I've always loved Cristina Aguilera's cute feet, but I've been waiting to see them in The Pose for years!"
Common foot fetishist slang that's used when someone lies down on their belly with their feet up in the air.
This kind of pose is common when someone lies on a flat surface (commonly a bed) and can't keep their legs straight, so they bend them up in the air, making feet and especially: their soles, visible above the head/butt.
Since this situation is fairly common, so, fetishists are often in the outlook for photos like this.
"I'm looking for photos of X actress/model in the pose."