Nothing

You don’t know what to do, so you just look at her doing nothing. The situation is rather bizarre. Suddenly Lisa bursts out laughing:

“You should see your face right now. You really thought that I'm serious, right?"

You blush “No, you just shocked me!”

“Oh I'm sorry, fair maiden, I didn't know that you are so innocent that you don't know what pussy is” she teases you.

“Fuck off, Lisa you can be such an ass!”

“Wrong” she scream jokingly “I have a great ass. And you are jealous.”

You shake your head ”You are a crazy bitch.”

She laughs and says “Thank you.”

Then she walks to you and hugs you “Don't be mad, just a little teasing between friends. See ya later slut.”

And she's gone.