Hypnosis, of course

"Bebe, we are going to try some deep relaxation," said Dr. Darke. "I'm going to play some faint, relaxing music and start a metronome. I want you to close your eyes and focus on the metronome and my voice. Relax your body.

Bebe did as she was told, and Dr. Darke put on the music and set the metronome to click slowly. "Bebe, relax. Take deep breaths and relax," he said softly. "Focus on my voice. It's relaxing."

After a minute of this, she was in a state of deep hypnosis.

"Bebe, can you hear me?"

"Yes."

"Good, now you trust me completely. You'll believe anything I say. You'll agree with any suggestions I give you. Got it?"

"Yes."

"Bebe, you will love being spanked. You crave being spanked prior to sex, and you will love anal sex. Any time you have anal sex, you have long amazing orgasms. Understand?"

"Yes."

"Also, any time a guy cums on your face, you orgasm. When I wake you up, you'll crave having anal sex with me. You need me to spank you and fuck you up the ass, and you won't take no for an answer. You'll offer me anything to get me to spank you and fuck you up the ass. Also, if you suck a cock that's been up your ass, you'll love it."