Sarah uses the dildo on me

"Your turn" says Sarah reaching out and taking the toy from my hand. I am so caught up with her that I do not realize it until she has it.

With a strength I didn't know she still had she throws me over and lies on top of me.

"N-no" I say not sure what will happen if she makes me cum with the magic dildo.

"Oh no," she says "I'm not letting you get away until I've made you cum at least as hard as I did. Your brother would never forgive me if he knew I let his sister pleasure me without returning the favour."

I giggle at the thought of how my brother would look if Sarah told him what we were doing. The thought of his wife having some hot girl-on-girl with his little sister would probably break him (Sarah and another girl? Cool. Sarah and I? Aaargh! Heck his little virgin sister and anyone would make him stick his fingers in his ears and sing "Not Listening!" over and over. He's a little like that, bless him). I'm so caught up in thinking about this that I fail to react until Sarah has shoved the magic dildo deep inside my waiting slit, which is sopping from my experience with her.

This time as Sarah moves it in and out I realize that it is now the perfect size for my cunt, able to stimulate every single nerve ending to the perfect pleasurable pitch. What is more it is throbbing like it did when Genie was attached to it. Needless to say I can feel myself approaching climax at a rate I thought impossible until today. I reach down to try to stop Sarah, knowing the outcome of climaxing with the dildo, but too late. As I do so I peak and my body spasms in ecstasy.

Sarah lets go of the dildo as smoke begins to billow out of it, but contrary to my expectations she doesn't scream as a Genie forms between my legs. She simple looks up at him in surprise.

"Hello Sarah" he says in his booming low voice "You are remarkably tight for one who has given birth to children."

"Thank you" says Sarah in a hushed voice.

Genie reaches out while continuing to thrust himself inside me and begins to rub Sarah's hair, and act which seems to have the same effect as if he were rubbing her clit as she begins to purr with delight.

"I wish …" I begin

"No need" says Genie "No-one but my mistress ever remembers me."

I lie back and enjoy the feeling of Genie inside me and watch in amusement as Sarah smiles contentedly, wondering if my brother has ever given her this kind of satisfaction.

I'm thinking about my next wish when Genie looks down at me

"Mistress" he says "With your permission I would like to reward your brother's wife for giving us such pleasure today. Perhaps you could let her have a single wish, knowing that she will be unaware that she has done so"