…that make a great photograph. In this case it’s her stretching motion and the associated facial expression as she reaches up to beat his feet. There’s plenty of restrained naked man that’s within easy reach. But she’s not simply waving the strap around, hitting whatever is in range while the photographer clicks off shots. She’s a mistress with a mission. She wants to inflict a particular type of pain, and she’s not going to let a simple matter of height or reach get in the way of that. That simple stretch conveys so much more about the scene we’re witnessing than all the other fetish elements.
I found this on the dominance and submission tumblr site. It’s obviously originally from the men in pain site.