The two were recently photographed hand-in-hand while taking a stroll through Pacific Palisades in LA on Sunday.
A representative for Donovan, 38, insisted there was nothing between the two, telling Just Jared, "They are just friends. Both are big animal lovers and advocates and are working on a 'Be Pawsome, Adopt!' campaign for local LA shelters."
A source close to the 19-year-old model also revealed, "I know the pic looks like there's more to it, but there's really not.