"I wish for girlfriend to know everything that has happened!"
The hare genie looks at you and her for a second, and smiles. "Your wish is fulfilled, your knowledge is now hers, along with you're old body, hehe."
Your girlfriend's chest is flattening, her long blond hair is being drawn back into her head and being reprocessed. Her shiny bald head now is covered in black stubble, which quickly grows into a familiar black thicket of curls. Her fine nose broadens into a twin of your former nose. You are looking at a twin of your former self.
"My old body?!?"
The new you grabs the lamp and rubs it, saying, "I wish..."