Sebastian Stan and Leighton Meester: Moving in Together?

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Leighton Meester and Sebastian Stan are getting serious.

The Gossip Girl star and her boyfriend, who co-starred as Carter Baizen in the first two seasons and will be back again in Season 3, spent Saturday afternoon drinking champagne at Day & Night Restaurant Beach Club in Southampton, N.Y.

Then they headed to the premiere of Stan's flick Spread in East Hampton.

"They are really in love," says a friend of the couple. "They plan on moving in together soon." Not sure if it's true, but that would be exciting if so!

Later that night, Sebastian Stan and Leighton Meester hit up Lily Pond night club with Spread star Ashton Kutcher and wife Demi Moore, who were staying at friend Donna Karan's East Hampton home, as well as with Josh Lucas.

Leighton Meester, Sebastian Stan

Don't Leighton and Sebastian make a cute couple?

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.

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