Mistress Grace and I are running a clinical trial at a secret location and We need to check up on Our patients. We enter the first room only to find a very naughty male slave trying to feel up the female patient who is tied to her bed and unable to move! he is sent to his bed and Lady Mercedes will punish him later. For now the Doctors must inspect their beautiful, big busted female slave, find out how her catheter feels. she just has the constant urge to piss and We both tell her she must wait, We do not wish her to piss yet. We have things to do first.

We want to test the slave t...

Mistress Grace and I are running a clinical trial at a secret location and We need to check up on Our patients. We enter the first room only to find a very naughty male slave trying to feel up the female patient who is tied to her bed and unable to move! he is sent to his bed and Lady Mercedes will punish him later. For now the Doctors must inspect their beautiful, big busted female slave, find out how her catheter feels. she just has the constant urge to piss and We both tell her she must wait, We do not wish her to piss yet. We have things to do first.

We want to test the slave to see how she responds to the electro stimulation to her pussy so we attached the pads and turn up the heat. I must inspect her pussy so the electrics are turned off and I put my gloved fingers into her warm, wet vagina. Mistress Grace gets the magic wand out and we tease the slave girl, Mistress Grace plays with her vagina while I twist and tease those erect nipples, running my long, red nails over her body. We love to feel this slaves skin, her nipples and We must ensure We inspect every part of her body to make sure she has had no reactions to the medication. Safety first of-course...