The Kardashians are truly hard to keep up with, as they have taken over Miami, Reality TV and headlines alike. And now, a new weight-loss supplement.

The reality sisters, Khloe and Kim recently posed in bikinis revealing their stunning new curves. The pair has been working in cahoots with the weight-loss supplement, QuickTrim and were shooting a commercial.

The family has forever been reprimanded for their overly curvaceous bods, particularly the new QuickTrim Duo. A former Miss USA Playboy Playmate has called Kim a “fat donkey”, while sister Khloe had been called Bigfoot, monster beast, fat skunk and Kong when her wedding photos were published in September. “Everyone criticizes me about my weight all the time,” said Khloe.

Who’s got the last laugh now?

The girls look fabulous! The tiny five foot two Kim is thinner than she has ever been, dropping more then 5 lbs. “I used to be so shy and insecure walking out in a bikini doing shoots and things,” she says. “I’m the skinniest I’ve ever been. I stepped on the scale, and it said I was 114 pounds. I always weighed 120, 125; I was shocked.” Kim says. Not far behind, Khloe announced she had lost 20 lbs. in 4 weeks and slimmed down to a size 6 from a size 10.

How do they do it? Kim’s fitness regimen involves working out 3-5 times a week and doing lots of lower-body work to keep her thighs and butt toned. While Khloe did a lot of cardio and boxing. Both with the jump start of QuickTrim.