Girls pushing stuck cars.

CarStuckGirls.com caters to those who get turned on by women with stuck cars. While I doubt it's a common sexual interest, one can easily imagine why this might be a turn-on. It plays on the damsel in distress theme, only rather than rescuing the princess from her prison in a castle, it's scantily clad women whose cars are stuck in the mud or snow. Here's the description from the photo set and video from which I selected the photo above. From CarStuckGirls.com:

Leanna and Kaitlin go offroading with daddy's Jeep and have lots of fun! They drive over rough and smooth, up and down and finally also through some mud. Suddenly the wheels start spinning and the Jeep stops. Are the girls stuck? Well, until they find how to switch into 4-wheel-drive. They keep going ... but not far, because now all 4 wheels are stuck in mud. And the mud is thick and gluey! The girls try to get out there driving deliberately forward and backward all over again. But the wheels keep digging deeper into the mud ... Finally Leanna takes her turn in driving and Kaitlin steps out and tries to push the Jeep from the front. On the way there she can hardly move to the mud and keeps getting stuck with her boots! And over more she also falls into the mud when trying to push the Jeep out. Tough luck. The girls are really in a mess ...!!!

Many more photo sets here.