If you are not satisfied with this and need raw stuff then check out Kate Upton Nude Leaked collection, they are amazing af.
But actually it is Natural and they are hot really hot. Not sure for which magazine or modeling She did this. Complete nude exposing her beautiful boobs but covering pussy with hands, however still we Can see some of it. In other photos kate is wearing a see thru top exposing her sexy tits which she did not know one day would be very precious.
Unfortunately Kate Upton movie career has almost come to an end especially after the debacle of her recent movie The Layover. In this film she was given stuff competition by another big booty actress Alexandra Daddario but still Kate held her own. Her full name is Katherine Elizabeth Upton born in 1992 which makes her 25 year old. Hopefully we will get much more of her in the future.