Robert Pattinson & Kristen Stewart Kiss & Party Down After MTV Movie Awards (PHOTOS)

What do you do when you make a grand sweep at the MTV Movie Awards? Party!

Twilight lovebirds Robert Pattinson and Kristen Stewart were spotted on their way to an MTV Movie Awards afterparty on Sunday night when they left the famed Chateau Marmont with a large group of friends. The pair had changed out of their fancy award show duds and instead optioned for jeans, t-shirts and sneakers for partying the night away.

So what did they do once they hit Jason Sudeikis’ after-party at SoHo House, sponsored by Grey Goose? Here is the scoop:

The duo arrived together and never left each other’s sides.

“Kristen held Rob’s hand and led him through the small party, after they said hi to some friends they basically just hung out together,” says a source inside the shindig.

“Everyone at the party was in great spirits, there was good music, Rob and Kristen danced, laughed, and looked like they had a ball.”

As for PDA between the couple that played coy during their Best Kiss acceptance speech? (Remember, Rob swooped down into the audience and kissed co-star Taylor Lautner instead of Kristen).

“They were kissing and hugging, literally they did not leave each other’s sides,” says an onlooker at the private party.

So glad the couple got to unwind and let loose! 

Even at the awards, Rob and Kristen were in their own world.

“I’m going to take you backstage,” Rob said with a giggle, causing many Twihards in the audience to gasp at the end of their Best Kiss speech.

Once the cameras were off them, an insider tells Celebuzz that the infamously private couple walked off the stage hand-in-hand, and were giggly and cuddly backstage.

Even when the lights dimmed on stage, Kristen held Rob’s hand when they showed the Breaking Dawn Pt. 1 trailer and even did a dance during the part when Edward broke the bed!

The insider also added that Rob’s Water for Elephants co-star Reese Witherspoon got her hair done before the show with KStew. Good to know that Kristen doesn’t mind being friends with the women who kiss her beau on-screen.

Check out more photos of Rob and Kristen heading out to a bar and be sure to follow Celebuzz on Twitter, Facebook and Tumblr for more celeb news and photos!