Move over Jude, Hayden and all others, Sienna’s got a new arm candy and he is HOT! Sienna has been seen out and about in New York City in the past week with Argentinean DKNY model Nico Malleville. The two recently vacationed together in Mexico at the luxury Coqui Coqui Spa on Talum beach, just one of the many hotels he happens to own. Sienna and Nico met years ago when he was in London working for Burberry. Here is a picture of the new couple in New York.