If I was backstage I'd probably just want to feel the firmness of his hams and glutes, no homo.
Maybe rub some posing oil on him, but I'm inexperienced with the application of the oil so I would feel horrible if he looked bad/placed poorly on my account. After thinking about all that pressure I'd probably decline the oil rub down, I mean I won't want to tape up LeBron's ankles before a game because I'm also not clinically trained in that field either.
So i guess just normal backstage stuff from me.