Here are the sexiest celebrities of the week, using social media to get millions of likes for the sexiest photos they've posted to Facebook. Featuring Jennifer Lopez, Stella Hudgens, Luci Ford, Demi Lovato, Michelle Jenneke, Alyssa Arce, JoJo, Erin Cummings, Kelly Brook, Aly Michalka, Jasmine Tookes, Alyssa Arce, Jocelyn Chew, Sara Sampaio, Rosie Huntington Whiteley, Hannah Davis, Jennette Mccurdy, Sammi Hanratty and Behati Prinsloo.