Nathan Fillion, Stana Katic Nathan Fillion, Stana Katic

Castle fans have to wait a few more weeks to find out whether Beckett accepts Castle's marriage proposal. But the ABC drama's new cast photos might give you something to look forward to.

Exclusive First Look: Check out Castle's sexy Season 6 photos has your exclusive first look at the new photos of stars Nathan Fillion and Stana Katic, one of which features the show's romantic duo dressed in some pretty spiffy formal wear. Although Katic's gold gown isn't exactly bridal standard, something about Fillion's tux and the couple's pose just screams "wedding photos."

Maybe it's just wishful thinking on our part (Beckett doesn't have a ring on her finger in any of the photos), but the truth about the couple's possible engagement and future will be revealed in the Season 6 premiere. Until then, drool over a few more exclusive sexy shots of the stars right now.

Castle premieres Monday, Sept. 23 at 10/9c on ABC.

Do you think Beckett will accept Rick's proposal?