"Jenny Sparks, and I come with all the standard appendages for a human female but I can do this--" she held out one hand and let lightning arc between her fingers-- "which can be fun if you get all your variables right. Best experience, that's a tough one, but I'm going with this one orgy in the sixties. That was fun. Worst, disregarding the ones I don't actually remember...a certain world-famous rock and roll musician who will remain nameless, back room of a bar, 1987. Some people have a rather higher opinion of themselves than is warranted, and that's all I'm going to say about that."