Transcript for Jennifer Aniston Pokes Fun at Pregnancy Rumors in Viral Ad
And we all want this girdle. We are talking about the video that's gone wildly viral. Jennifer aniston caught on camera, in spoof surveillance tapes, revealing a huge baby bump and two kids we didn't know she had. She's in on the joke. And cecilia vega has all of the deta Reporter: After all those years of dogged headlines, could it possibly be true? A pregnant jennifer aniston? Oh, god. Oh. Oh. So much better. How are my little triplets doing? You must be so thirsty. Reporter: Not just triplets. But jimmy kimmel for a son. Can I go swimming? Honey, please be a good boy. Go upstairs and take a nap. Reporter: Even an alien baby. It's the stuff tabloid rumors are made of. Would you take your little brother with you? Reporter: This time, it's aniston throwing fuel on the hollywood fire. She was part of the team that came up with the idea to advertise smartwater by making fun of herself. Jennifer aniston's home security tapes, leaked online by an unknown source. Reporter: Is this a new thing in hollywood, self-deprecation? It's really empowering to take the people who are dissecting your personal life and throw it back in their faces and say, I can play this game, too. And the fans really love it. Reporter: From hot-tempered tennis players. Why would I buy tennis lessons? You don't have to pay the charge while american express helps resolve it. I don't get to dispute it? Reporter: To directors. While aniston may not be pregnant with triplets. Good night, rachel. Reporter: That hair, we all know, is way too perfect to be real. For "good morning america" -- is there a light on up there? Reporter: Cecilia vega, abc news, los angeles.
This transcript has been automatically generated and may not be 100% accurate.