I've seen that pic before, and if they had cameras in the mirrors taking that one, why not show the pic's more explicit without some clothing or one of them touching private parts? It's because that's the worst they were doing, rough-housing, wrestling as ALL boys do, except they are in a hotel room which for traveling musicians is all they've got to wrestle in.
How this Maura and whatever theories she has, can be confident about anything is beyond me. All I see are a bunch of rehashed possibilities. Combination possibilities are mathematically infinite, as especially any who have followed the hoax from the beginning realize. For me the ONLY certain thing is that MJ is alive and enjoying a bit more freedom/privacy. Also, he has purpose in planning for decades and staging something so elaborate all the while dealing with the WORST human beings, and could not possibly be persuaded to forget about his desired goals. 7 is a number MJ liked, and we haven't yet reached 7 years of his 'Ghost' state, so why all the doubt, worry and lack of confidence in MJ's chess-playing ability? There's also the possibility Maura is a planted troll/disinformation agent, and she's done a very good job.