The 46-year-old former "Friends" star doesn't think people should tone things down as they get older and doesn't see why people are concerned about what others look like, reported People magazine.
"If I can be the first 80-year-old to go out there successfully in a bikini, then I'll take that on.
"I don't think anybody needs to rein in anything because of an age. That is absolute BS. To each his own! Everybody needs to stay in his own backyard," she said.
Aniston turns 47 next month but she jokingly claimed she is planning to ignore the big day.