Kim Kardashian has worked hard to get her pre-baby body back and has no problem flaunting her curves for the camera. The 33-year-old reality star and her friend Black Chyna, a model and former stripper, recently took to Kardashian's Instagram account to show off their toned abs and butts after a workout session.

"Getting right for the new year," Kardashian captioned the photo.

She has showed off her 56-pound weight loss in the past by posting a photo in a one-piece cutout bathing suit on Instagram. The new mom, who gave birth to her daughter North West in June, recently told a TMZ photographer that the trick to her rock-hard abs is "no carbs, exercise and dedication."

Even though the "Keeping Up With the Kardashians" star looks amazing, a source told Now magazine (via the Daily Mail) that she is hoping to reach a size 0 - which is smaller than she was before giving birth - by eating only 1,000 calories a day.

"She's hit her goal weight but wants to drop to a size 0," the source claims. "She also wakes up for daily 5 a.m. workouts and often does another hour in the afternoon."

She revealed on Twitter that she initially started losing the weight by doing the Atkins diet, which cuts carbs from a person's diet in the beginning and slowly reintroduces them later on. Kardashian is reportedly so determined to lose the weight that she is taking a personal trainer on the road with her as she travels the road with Kanye West for his "Yeezus" tour.

"With the exception of some cheat days, because she is realistic now, she sticks with it!" a source told People magazine.