Comfortables to crush

Description: We already know that they are comfortable, i already told you in one of the videos i made stepping on my slave with them. however i want to test it another way: by crushing the slave's dick directly on the floor. i ordered the slave to sit naked in front of me so i could begin my test. once again, the sandals were tested and approved. they are extremely comfortable, but i had one doubt: every time i had to step on the floor for my slave to lick my feet, i crushed the slave's dick together, could this be a new form of comfort? having a hard dick under my feet to give me extra comfort?