I think you went a little too sexual from the off, no need to ask her if she's been with a black guy or what turns her on. Plus you kinda went over that earlier in the interaction (hair pulling, spanking etc.) Anyway, for now, I would probably go with "Are you always this talkative?" but move on from talking about kinks and turnons and try to move for a meetup. It seems to me like she was really DTF so try not to drag things out, 'simplicity and efficiency is the name of the game.'