"This is so good." Sarah moaned. "And so is what you're doing." He put his hands on the back of Jons head, forcing her to take the entire shaft into her tiny mouth. She would have gagged, if it hadn't been for Sarah telling him not to. Jon felt her former dick pulsate, and a shot of hot, salty liquid hit the back of his troath. Sarah pulled out and let the rest of the load hit her in the face. Jon could feel the sperm running from her chin down towards her mouth, and reached up to dry it off.
"No, don't do that. Kneel and let it stay there. How do you like your facial? You guys all like to ejaculate on a girl, don't you? Well, you won't be able to do it anymore now."
Jon felt like crying, but found she couldn't. "Please, Sarah, give me back..."
"Be silent until I tell you otherwise! Now, just sit there and wait until I've decided what your orders will be."
Jon kneeled on the floor in silence as Sarah thought out her plan.
"Okay, let's see. First of all, you are to obey no commands but mine, whatever body or form I might occupy. Secondly, you are going to be my personal maid, cleaning up after me and tending to all my needs. And, of course, you are not allowed to touch or make any wishes with the stone unless I specifically tell you to."
"Now, you can't go around being called Jon anymore, can you? Or Sarah, in case I want to swap back to being myself later on. I wish that everybody would remember you as Lisa, my personal maid and slave, no matter how you looked, and that nobody would think that me having you as a slave was weird or wrong, nor will they find any actions you do, or we do together, wrong or strange." Sarah felt a need to look away from Jon, now Lisa, as the wish took effect.
"Well, now, just to make the humiliation complete. You are turned on by being degraded by me, by letting yourself be my slave. It doesn't remove your feeling of shame, in fact it intensifies it, but you cannot help becoming turned on. And I mean really turned on."
"I think I will have a bath. Join me and tend to my needs." Lisa felt a tingling sensation from her crotch as she rose to obey her masters wish.