After the big show was over, A-listers flocked to the party of the year: the Vanity Fair Oscar party. And while some couples and friends may have restrained themselves while posing on the red carpet, once the stars got to the party and popped the champagne, they weren't afraid to show some serious PDA!

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Could these three couples get any cuter? The most adorable couple of the night goes to Natalie Portman and Benjamin Millipied who couldn't seem to keep their hands/lips away from each other.

While Miley Cyrus and Liam Hemsworth are the most effortlessly sexy couple at the event. Miley certainly knows how to nail a "Oh, hey, whoops, did you catch us all over each other?" look.

Jason Sudeikis and Olivia Wilde seemed to camp out at their table all night whispering sweet nothings into each other's ears. So we're going to give them the prize of sweetest new lovebirds at the party. But really, Jason just wins the overall dude prize for snagging Olivia. No Oscar needed for this guy.

Check out all the pics of friends and lovers cuddling up at the afterparty -- and let us know which couple is your favorite!

Photos Courtesy of Getty Images=