Natasha's back is like a blank canvas that our nails (natural and artificial) will use to "make our art"! Mrs "A" lives her first experience scratching another woman's body and I am increasingly proud of the way she learns and perfects the actions.
Sometimes Natasha howls, sometimes her whole body shudders. But we continued scratching and admiring the marks left on her back.
In the end, I take the whip and punish Natasha's ass by whipping her.