This why Kate Moss remains relevant as a model, through motherhood and thirty-somethingdom: she does not hesitate to lift her fishnetted ass into the air for the cause of fashion photography. It's no Li-Lo's Naked Marilyn spread, but it is, erm, a spread, and it works.
So, yeah. That's why she's still at the top of the supermodel heap, and not producing reality TV model competitions. That, and she doesn't hesitate to date coke-addicts and frolic topless in the Caribbean, but neither of those things have anything to do with the picture above.
