• Share
  • Tweet
  • Share
Kristen Stewart, Cesar Awards

AP Photo/Thibault Camus

In typical Kristen Stewart fashion, the actress is calling it like she sees it. 

The 25-year-old Clouds of Sils Maria star covers the latest issue of Harper's Bazaar U.K. and opens up about sexism in Tinsel Town, calling Hollywood "disgustingly sexist" and adding that "fame is the worst thing in the world." 

In addition to her cover story, the former Twilight stunner, who has been in the biz since she was a little girl, shares her beauty secrets and her exercise regime as well as her thoughts on plastic surgery. 

PHOTOS: Stars who've admitted to plastic surgery

Kristen Stewart

The Grosby Group/AKM-GSI

"I either like being really sexy or insanely androgynous," the brunette stunner reveals. "I'm not great at applying make-up myself. My mom never taught me anything, she doesn't wear make-up...I like mineral make-up. You can't screw it up and it's not bad for your skin."

When it comes to plastic surgery, Stewart has strong opinions and has no desire whatsoever to go under the knife. 

"No, never. Never," she says of plastic surgery. "I am so freaked out by the idea of doing anything. And maybe that's completely arrogant but I don't want to change anything about myself. I think the women who do are losing their minds. It's vandalism."

VIDEO: Will Kristen Stewart ever reprise her Twilight role?

Kristen Stewart, Harper's Bazaar UK

Harper¹s Bazaar / Alexi Lubomirski

Stewart's desire to stay true to herself is often apparent—the Runaways star is regularly spotted on the red carpet wearing Converse sneakers and she refuses to conform to the industry's beauty standards. 

"I don't like having nice hair, ever," she explains of her signature messy 'do. "There's something about it that pushes me over into feeling like I'm wearing a costume. So long as I can have my hair the way it normally is, then I can do everything else full on."

Kristen Stewart

Alberto E. Rodriguez/Getty Images for AFI

As for her workout routine? Turns out Stewart, who previously played an army guard stationed at Guantanamo Bay for her role in Camp X-Ray, is one tough gal.

"When I'm in good shape I can do 40 push-ups in one go," she reveals. "If I'm not in good shape, I can do 10. If I am trying to get into shape and I want to be strong, I'll drop and do 20 every half hour throughout the day. I can do 250 push-ups in a day, which is pretty impressive. At the moment, I can do 20 comfortably. It takes me about a month to get into phenomenal shape with a trainer." 

PHOTOS: Kristen Stewart's fashion evolution