NEVER be the first to mention sex acts, money or get naked.
Make her take the lead on all to show she's not LE. If she asks, tell her you're not going to do any of those until you're sure she's not LE and you won't be sure she's LE until she's nude.
I have contacted her last week, but not seen, because I was not for sure. There were 3 things that held me back. First, respond quickly. Second, low cost. Third, sent a fake photo while I didn’t ask for and the photo showed her face while she tried to hide on the ad. So my advice, if you don’t for sure after have done any possible reacher, forget it.