Jennifer Aniston [1] and Justin Theroux may have skipped the Oscars red carpet on Sunday, but they certainly made up for it at Vanity Fair's annual afterparty. Jennifer turned up the heat in a black Versace gown with a plunging neckline [2], while Justin looked dapper in a black suit. At one point, the couple — who recently returned from Mexico [3] — even shared a sweet moment in front of photographers as they gazed lovingly into each other's eyes. We haven't seen Jen look this sexy in a while, but we definitely aren't complaining.