I'd say it depends on her personality. It might have just been friendly teasing. I think that's a good conversation to have with her just to be sure, and set up boundaries of what is and isn't ok to joke about. But for your lack of experience, I'd say don't worry about it that much. I'm almost 20 years old and I haven't even had my first kiss yet. Things like relationships take time to develop and we're all on our own path, you'll find someone to experience those things with soon.