There has to be something underneath, right? Otherwise this would cause severe lacerations, or at least scrapes, in my mind.
What part of S&M (sadism and masochism) don't you understand
I guess when you put it that way...
He wouldn't slide otherwise
I think you can see a part of a board at his knees.
Oh yeah, and under his chest there too?
Her back foot is definitely not riding on him.
That's what I thought as well
Well, it does look like a particularly hard ride though..
Meh. The rider has poor technique. With all her weight on her back foot she will have a really hard time initiating a turn and will likely fall as she tries to engage her heel edge.
Did you wax your slave today?
Lubed and ready to spring in action!