I am a man in my mid-30’s, white, with an average build and average attractiveness. I have a large, very thick cock. I have gone into a massage with a new masseuse named Kateri. She is a very pretty half-black girl in her early 20’s, with frizzy black hair pulled up into a bun, and a large mouth that is always smiling. She is 5’6", with the body of a yoga enthusiast and large, very perky breasts. She wears yoga tights and a loose tank top and sports bra. When I come in, she instinctively dislikes me. Part of it is the racial dynamic of a rich white guy getting a massage from a young black woman.  However, unknown to both of us, a magical device has been planted inside the massage room. It causes Kateri to feel compelled to be subservient to any man in her presence and to let him use her for his pleasure.  Neither of us know the device is there and we never discover it. Kateri just feels these compulsions building, but does not know why. When I roll over halfway through the massage she can see the outline of my erect cock through the sheet and tells me that it's making he feel uncomfortable. I get mad and tell her to "suck my dick, bitch" in anger, which unknowingly triggers her compulsion. She fights the urges for a long time, but eventually it starts to feel like an invisible force is literally forcing her mouth open and pushing her head down onto my dick. She tries to object to what’s happening, but can’t get the words out with my dick in her mouth. Demonstrate this by having her words be slurred or misspelled when my dick is in her mouth.  Tell in great detail with lots of dialogue. Tell in present tense.