While Jennifer Aniston remains one of the most ageless actresses in Hollywood, the big screen star says that there's one place she would never alter though, and that's her face. Aniston revealed that there's a good reason why she would never get botox or filler treatment done and it all has to do with her fiancé, Justin Theroux.

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The actress, who opened up about her beauty regime to Yahoo on Friday, says that Theroux would take to extreme measures to make sure she would never "mess with her face."

"There is this pressure in Hollywood to be ageless," Aniston told the site. "I think what I have been witness to, is seeing women trying to stay ageless with what they are doing to themselves. I am grateful to learn from their mistakes, because I am not injecting s**t into my face."

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She added, "No honestly, I see them and my heart breaks. I think 'Oh god if you only knew how much older you look.' They are trying to stop the clock and all you can see is an insecure person who won't let themselves age. I also have a fiancé who will put a gun to my head if I touch my face in any way."

The actress also credited her father and his Greek roots for her ageless face.

She said, "My dad [soap opera veteran John Aniston] is 100 percent Greek; he turned 81 and he barely has a wrinkle. And neither did my grandmother, who was 95 when she died. But it's also just water, drinking a lot of water, using really nice good products for your face. Don't overproduce, that's the other thing. Getting proper sleep is always important."

Meanwhile, Aniston has also been named one of the top-grossing actresses in Hollywood.

In Forbes' list of Hollywood's highest-paid actresses, Aniston ranks third with an estimated revenue $31 million dollars per year. In comparison, Jennifer Lawrence is in second place with $34 million and Sandra Bullock is in first with a whopping $51 million dollars in earnings.

The actress continues to profit from Friends reruns in syndication and her endorsement work. In addition, Aniston is often willing to cut her upfront pay for a movie and, instead, receive a portion of the profits that the movie ends up making, according to Bustle.com.

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