Trying to find ways to flirt with a girl without being perverted?

So flirting with girl and my sexting to her is perverted but she lol at everything I say. When physically say what I'm going to do she seem hide the fact that she enjoy it but then she keeps coming back for more. Like she tells me she don't like to be touch on the butt, I told her to stop hitting me. She hits me anyway and I told her if she hits me one more time then I'll smack her butt. She shakes her head don't do it. She punches me and I end up hitting her butt, she pinch my chest and runs away.

Though she act childish and she likes me, I jus want sext without being a pervert and play around seeming to be a huge pervert.
Trying to find ways to flirt with a girl without being perverted?
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