It's almost certainly picture manipulation with something like Photoshop, not makeup. For instance, most of the pattern on her left elbow is identical to the one on her right, imperfections and all.

I don't know about why anyone else's aversion. To me, if those implant thingies were for real they'd feel extremely uncomfortable. I can imagine them hurting or itching and being hard to keep clean -- and never being able to use an armrest that was any harder than a pillow.

I think the girl who posed for the picture was grinning about the mischief that she knew was being planned.