Credit: Jon Kopaloff/FilmMagic

Is Jennifer Aniston packing on the pounds?


But the 42-year-old Horrible Bosses actress with the world-famous bikini bod claims she's gained some weight -- thanks to cigarettes, not a baby-to-be.

"No, we're not pregnant," Aniston (who's been dating Justin Theroux since the spring) told Britain's Hello! magazine. "It's just I quit smoking, so I've gained a couple of pounds."

Indeed, back in 2002, Aniston vowed to "eventually quit smoking." As recently as summer 2010, the yoga enthusiast was smoking a pack a day.

And though she and Wanderlust costar Theroux, 40, appear more in love than ever, there are no imminent wedding plans, she insists.

"I am not planning to get married any time soon. This ring that I'm wearing is not an engagement ring," she told Hello! "I've been married once [to Brad Pitt] and I don't know if I'll get married again, but I can tell you that as of this very moment, as of today, I have no plan to get married."