Yeah, it's skin for sure. You can see the cellulite towards the underside and at that weight you sure as shit aren't going to get great circulation in your legs, more so if Lord Beetus is lurking with the end result being a corpselike sheen. They'll lay down a kind of paper towel with a window cut in for the operating theatre but the poor OR staff has to slather the area first with iodine or some other disinfectant. I've never heard of clear film being used but SurgicalShitlord or other MDs could weigh in.