Newbie cunnilinguist seeking advice

Hi. Until a few days ago, I had never gone down on a woman (not that I didn't want to, but foreveralone and such). I wasn't completely clueless when it happened, after reading a book/articles and doing a bunch of tongue exercises for a while.

It went better than I expected. After her first orgasm (I don't think she was faking, since she start convulsing and squeezing my head really hard with her thighs), she told me that she didn't think she was capable of having multiple orgasms. So I showed her that it was possible, and she was pleasantly surprised and told me that I was really good at pleasing a woman. I suppose it's beginner's luck?

Here's the problem: I'm not that experienced, and I don't really have much in my repertoire. If I do the same things again next time (assuming there is a next time), is she going to get bored and think it's lame and repetitive? I don't want to come across as being a one-trick pony. How much should I mix up and experiment?

Thanks for the help.