It's twisted, yes, but it's totally them ... and totally sincere.

In this latest clip from the Gossip Girl series finale, Jack Bass comes up with a new plan to help protect Blair and Chuck: Get married! Because legally, one can't be forced to testify against one's spouse.

Not the way Blair drew it up in her mind, but certainly without genuine emotion, either. Despite the unconventional circumstances, both seem wholly committed to the union that is about to go down.

Watch Chuck get down on one knee and propose below:

What do you think? Everything you never dreamed? Were you expecting more? And will their wedding go off without a hitch (or at least be enough of a success that they remain together for good)?

This is the fifth Gossip Girl finale sneak preview clip we've seen so far, probably equaling the number of sneak peeks released all season, as the CW has just remembered the show exists.

The other scenes from tomorrow night's swan song:

• Nate and Sage examining evidence regarding who GG might be
• Serena and Dan discussing whether what he wrote is sincere
• Dan and Georgina arguing over her plan - and his changing it
• Jack and Georgina making intros, and scheming plans

Share your predictions and comments on "New York, I Love You XOXO" below!

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