The slave is trapped in the floor and needs a new face...
This can be made with pressure-massage, a really hards and heavy pressuremassage!
Isabella wears flat boots for doing it, she steps with one foot, two feet, the softer sole and hard and edgy heel on the little poor face which cannot move away.
After a while she feels that the face gets softer under her steps, so she shows some mercy,
She removers the boots, places her feet right on his nose and let him inhale the sweet odor of her feet coming out from the sticky boots.