Lesbian sex? lol. It’s just called “sex”, okay? With a boy or a girl, it’s still just “sex”. 😉
Well, if you were good at it too, then there’s no reason why she wouldn’t be up for it again! Are you guys casual friends or is there more history?
If you’re close, you should be able to feel comfortable to bring it up again. You know, a really simple, straightforward confession of, “I’m horny, you’re amazing, please get me off again?”
If you’re casual friends, it’s easy to see as a one-off, but try dropping some hints, touches, etc. and see how receptive she is? If she’s into it then I’d just go for it again like you did the last time.