Feeling a faint rumble, you reach down and find a perfect pair of panties. They are made of a smooth silk. They are red and lacy. However, the best feature is that they have a vibrating dildo at the back!
Your pussy now dripping fluid onto the floor in anticipation, you hastily slip the pleasure panties on. As the dildo enters your luscious ass, you fall over onto a large pile of other panties. As the dildo shakes, your entire bottom vibrates.
"YEEEEESSSSSSSSSSS!!!!" You shriek in your lovely, female voice. "GOD, I'M GOING TO-to- CUUUUUMMMMMM!!!"
As you scream, the dildo magically rams itself in and out of your butt. Finally, your ass comes. The dildo has turned your ass into its own vagina. It has all the nerves of your pussy, but is as tight as your own ass. This transformation seems even better than your orginal pussy.