Isabella in riding-outfits, offcoarse with boots, needs a slave under her boots.
She enters the scene and steps first on a hand, then on his chest and the next step....
She is a specialist for face- and headtrampling, she loves when she knows her slave is in pain when she crushes his face under the rough sole of the boots.
So she tramples him with some short breaks, mostly fullweight, and many times on her favorite target... his face ;-)