We love Jane Fonda. From her acting to her workout videos to her political activism, the daughter of Henry and sister of Peter continues to do it all, even at the age of 76. But if you've seen previews for her upcoming film This Is Where I Leave You, you may have noticed that the Oscar winner is carrying a little something extra upstairs. No, she didn't get breast implants. They're only temporary and, in fact, "when you take them off they fall apart." Last night on Jimmy Kimmel Live!, Fonda walked us through the entire process of becoming enlarged and how she had a little fun with her new pair at the expense of some passersby.

The process started, as Fonda notes that it always seem to, with "a couple of guys in the valley," who smoothed silicon over her to create her temporary prostheses. Fonda wasn't shy about expressing her love for the experience, either. "When you have tits that big, people treat you differently," she told Kimmel before explaining that while shooting she'd purposefully let her robe fall open while walking from the makeup room to the studio to see what kind of reaction she'd get from people stuck in traffic nearby.

Either way, Fonda is simply stunning at 76, and just as funny and charming as ever. But if you go see This Is Where I Leave You, just know that those things aren't permanent. Watch below:

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