Leighton Meester: 'Monstrous Ball' Beauty

Leighton Meester and Ed Westwick get intimately close in this new still from Gossip Girl.

In next week’s episode “Monstrous Ball,” After Eleanor (Margaret Colin) gives Blair (Meester) an ultimatum, Blair is even more determined to remedy Waldorf Designs’ problems by making a splash with a dress at the upcoming Cotillion, but a shocking revelation at the ball affects everyone.

Serena (Blake Lively) becomes worried about Steven’s (Barry Watson) attitude toward her, but after some investigating she discovers the surprising reason why.

Meanwhile, Dan (Penn Badgley) publishes another article, but the effect is just the opposite of what he was hoping for.

“Monstrous Ball” airs Monday, November 12th @ 9PM ET/PT on the CW. 10+ pics inside…