Dancing With Your Ghost

So, Lisa cleared her throat and asked, "Who are you?"
The girl spun around, her hair whipping around her body as she did, performance forgotten. For a moment she just stared at Lisa with wide brown eyes, mouth half open.
Then she said, "Oh fuck."
And she completely disappeared, letting the wooden spoon clatter to the floor.
OR
Jennie is the ghost haunting the house that Lisa just moved into

Disclaimer: I DON'T OWN THE STORY. CREDIT GOES TO THE BRILLIANT WRITER.