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Khloe Kardashian feels 'massive' next to sisters

"Everyone expects me to be 9 feet tall and weigh 200 pounds [when they meet me]," says the reality star who "has struggled with her weight since she was 8 years old."
/ Source: Us Weekly

It's not easy being the "biggest" Kardashian sister.

In the new issue of Us Weekly, out Wednesday, Khloe Kardashian admits red carpet events with older sibs Kim and Kourtney can take their toll on her self esteem.

VIDEO: Kris slams Khloe for supposed weight gain

"They are 5-foot and 5-foot-2, so I look massive next to them," Khloe, who is 5-foot-10, tells Us. "Everyone expects me to be 9 feet tall and weigh 200 pounds [when they meet me]."

26-year-old Khloe — whose mom Kris Jenner even criticized her weight in a recent episode of "Khloe and Lamar" — has "struggled with her weight since she was 8 years old," a family friend tells Us. "She was always taller and developed much broader shoulders than her petite sisters."

PHOTOS: Khloe and Lamar's wedded bliss

And the E! reality star, happily married to basketball star Lamar Odom for over a year, says she first gained weight following Kris' divorce from her late father, famed OJ Simpson trial attorney Robert Kardashian Sr.

"My brother [Rob] and I were always heavy. They gave us food to keep us comforted. All we did was eat crap," she recalls.

PHOTOS: How Khloe dropped 30 pounds last year

Classmates and even her mom's friends noticed that Khloe's older sisters Kim, 30, and Kourtney, 32, stayed skinny despite the family turmoil. "I had older women tell me, 'You should really work out,'" she explains. "It really got to me."

PHOTOS: See the Kardashian family album

Her initial response? A teenaged Khloe hit the gym, working out three times a day and eating tiny meals. She went from a size 12 to 0.

"I started to get a positive response from people when I was losing weight," she admits.

For more of Khloe's revealing, emotional sit-down with Usher scary wakeup call at age 15, her "embarrassing" breakdown on the show, what Kim and Kourtney have to say and more — pick up the new Us Weekly, out now!