'Gossip Girl' Season 6: Check out Chuck and Blair's hot and heavy sex session and Serena's very bad day

In case there were ever any doubts that "Gossip Girl's" will-they-won't-they couple most definitely will in the upcoming final season -- rest assured, Chair fans. Chuck and Blair have a very, very hot and heavy makeout session in the Oct. 8 season premiere... that is, if it doesn't turn out to be a dream.

The Canadian "Gossip Girl" marketing team tends to be a bit more liberal with the spoilers when assembling their promos, and this week, a Canadian TV show aired an intense clip that featured Leighton Meester and Ed Westwick in a passionate embrace that goes on, and on, and on. (Seriously, we kept waiting for it to fade to black, and it didn't.) Meester's got a whole lot of exposed skin, while Westwick keeps his shirt on -- probably to cover the actor's many tattoos that Chuck Bass would never, ever get.

The trailer also features Blair crying out "My god!" and then some naked, sweaty panting, before she says, "Do that again," and, of course, Chuck gears up for round two. Even us die-hard Dair fans have to admit that it's basically the hottest scene "Gossip Girl" has ever had.

Things definitely don't look quite so fun for Serena (Blake Lively), who is found passed out on a train with a bloody nose, because she's classy like that. You can check out the promo below, but we'll warn you -- the quality leaves a lot to be desired.

Basically, "Gossip Girl" is turning up the heat big time for its final 10 episodes. This isn't Constance Billard anymore, ladies and gents.