"Hum...what's your wish upon me?" you ask humbly. The last thing you want is that she transforms into and anthro-slug permanently. You'd rather be an anthro-frog than that freakish thing you were now.
"That's quite nice from you. It seems like you've been learning some manners. You know what...I will even reward you for such thing - please let me transform you into whatever you want!"
Really, you cannot believe this - the witch just asked you what you'd like to be transformed back into.
"Myself," you say. She quints her eyes, as if you were somehow being abusive, but a smile comes up and she remarks once again how good of a helper you were with that client. The witch draws her wand from her potion tables and points at you, you cannot really see a flash of magic but the changes start to be felt. Your jelly body redefines and soon, very quickly your conscious is aware that you are back to your former body. There you stand, in front of the witch almost nude as your pants are about to fall on the floor due to how stretched they were during the whole transformations.
"Oh, I forgot how ugly you were", the witch says, actually pity you. You think T"hanks" sarcastically but you figure out that it's probably best to only smirk and nod.
"Let me do something more for you!"