Pretty sure it's just jokes. The picture above has been floating around and people have been making jokes about it for a few days now. The problem is she keeps posting about it rather than ignore it, so people are going to keep poking at it.
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Granted, I haven't heard about possible other pictures until now, so I could be wrong, but right now, it just seems to be jokes to me since orgies and trains are on people's minds right now.
Edit: Just saw this, lol:
She might be pretty cool, actually.