AceShowbiz -

Kim Kardashian debuts her sexy bikini body six months after giving birth to her daughter North West. The reality star is featured on the cover of Us Magazine's latest issue wearing a skimpy white bikini.

Kim became a target of cyberbullying when she gained much weight during pregnancy. The "Keeping Up with the Kardashians" star, however, apparently has started to regain her pre-baby body after working out. "Kim feels confident again. She worked really hard and is so motivated to stay fit," a source close to Kim tells the magazine.

On Wednesday, December 10, Kim attended the 2013 Hollywood Reporter Women in Entertainment Breakfast and made a comment about her post-baby body. "So I saw one photo. It was OK. I think I still have about 10 pounds to go," she told E! News, referring to the magazine's cover.

Kim added, "We were in Miami for [fiance Kanye West's] tour and my friends and I had a morning off and we're like, 'Let's go to the beach.' We got to the beach, we turn around and we see all this paparazzi. I was like, 'Nope, we're not going to the beach,' " she recalled with a laugh. "We walked in and I was like, 'I don't think I'm ready yet, I don't want to be seen... I'm not bikini-ready yet!' "