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Kim Kardashian has gained weight because she is "happy and comfortable".
The curvaceous reality TV star has been dating rapper Kanye West since April this year.
Kim believes being content can lead to piling on a few pounds.
"Yes, I have gained some weight...but I guess being happy and comfortable does that to you," she wrote on her blog on Thursday.
Life & Style magazine recently claimed the 31-year-old had added around "15 to 20 pounds" to her figure since dating Kanye.
Kim acknowledges the weight gain and has a positive outlook about getting back into shape.
"I am back in the gym, watching what I eat and that, combined with starting QuickTrim again, means I'm feeling positive," she blogged.
"I just want to be at my target weight and feel good about myself. I hate feeling heavy and lazy and it's not a nice feeling when my clothes don't fit. Just gotta stay focused! Xo [sic]"
The healthy changes to her lifestyle seem to be having the desired effect.
"Since I started QuickTrim again a few weeks ago, I'm down 6 lbs!!! Yay best feeling. I was getting discouraged but now I'm so motivated!" she happily tweeted.
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