New boots make the slave scream in pain

This pair of boots was gifted to me by a fan a few weeks ago - but i didn't try them out on the slave yet. they've such a nice hard tread - perfect to leave some marks in the slave's flesh! the tread isn't even that deep - but it's really hard and has nice sharp edges. as i walk over the slave's hands and keep standing on them with my full body weight, the slave starts screaming in pain - which is music to my ears! let's see what makes him scream louder - the tread of the boot sole or the chunky heels ... anyway, in the end, his hands will be covered in shoe prints and he'll remember these boots for a while!