Sebastian Stan

 Seriously, make up your mind.

Gossip Girl Leighton Meester and her boyfriend are yet again supposedly engaged, even though there were rumors of their engagement last year too.

According to their secret Facebook profiles, her and boyfriend Sebastian Stan are getting ready to tie the knot.

Maybe now they can make their own bedroom tape. 

Gossip Girl’s Leighton Meester is the latest celeb to be caught up in a sex tape scandal.

Now she has something in common with Paris Hilton and Lauren Conrad.

Hootie Hoo!

Our favorite couple, Chuck (our love, Ed Westwick) and Blair (Leighton Meester) were snapped filming an upcoming scene for Gossip Girl in front of the Plaza Hotel yesterday and they were TOTALLY MAKING OUT!!!!!!!

Yay Yeah!

Chuck and Blair 4 Eva.

Leighton’s real life boyfriend, Sebastian Stan, got a front row seat for their hook up session since he was also on set to film scenes with Blake Lively's character, Serena.

Gossip Girl star Leighton Meester, 22, and her boyfriend, Sebastian Stan, 25, are engaged…

According to Facebook.

We’re still deciding if that gives the rumor more or less validity.

A source close to the starlet says the couple, who met on the set of GG last year, made the announcement of their betrothal on their private Facebook pages.

We can barely write this post because we are barfing all over ourselves right now.

According to Page Six, Gossip Girl has spawned another couple to go on double dates with real-life couples Blake Lively and Penn Badgley (aka Serena and Dan) and Leighton Meester and Sebastian Stan (Blair and Carter Basin).

Ed Westwick and Jessica Szohr are reportedly dating.

Heinous cow Vanessa is dating our favorite Bass-tard?

We can hardly keep up…there’s ANOTHER Gossip Girl off-screen hook up.

Leighton Meester is reportedly dating her Gossip Girl co-star Sebastian Stan. The pair was spotted at the Armani Exchange dinner for Nylon magazine's "Young Hollywood" issue in the Big Apple earlier this week, and PageSix says, "(They) couldn't keep their hands off of each other... they didn't care. Blake and Penn were much more private."