But Kim Kardashian is taking steps to get them back under control, starting her day with a hardcore bootcamp class.
The reality star was up early and at the gym for a double workout this morning, after anxiously tweeting 'I think my butt looks too big in these jeans.'
Does my butt look big? Kim Kardashian shows off her famous rear as she heads back to her car after an early morning double workout today
Kardashian Kurves: Kim has just launched a new clothing line for 'plus sized' women, but as it starts at U.S. size 18 (a UK 22) she has a long way to go before she needs it
Too big? Kim asked her fans for their opinions on her 'big butt', tweeting this picture
If Kim does feel she has put on a little too much weight, she needn't worry.
She and her sisters have just launched a new clothing range especially for those with more curvacious figures, starting at a U.S. size 18. 'So excited to announce that my sisters and I are releasing a fabulous ready to wear line for plus-size ladies for our Kardashian Kollection for Sears called Kardashian Kurves!' she wrote.
Meanwhile there is one person who appreciates Kim's curves - her boyfriend Kanye West has written a song in honour of them. Following the break-down of her short-lived marriage to Kris Humphries, Kim has rethought her taste in fashion.
But she denies this is fully down to Kanye's influence. 'It came from me taking time away at the end of last year and the beginning of this year and really simplifying my life,' she tells the new edition of V Magazine. 'I went and stayed at my mom’s house for like four months, and I didn’t bring any makeup, high heels, or anything. I just brought sweats, workout clothes, and pajamas. It was so refreshing to me!'
Hard at work: After her early morning bootcamp Kim was busy having her photograph taken. She tweeted: '70's shoot today with mrchrismcmillan'