During her pregnancy with baby girl North West, Kim Kadashian was harshly criticized by the media for her pregnancy weight gain but has since regained her sexy physique a "big middle finger to the world."

According to Us Weekly, the "Keeping Up with the Kardashians" star who is set to be featured on the cover of the magazine's latest issue managed to drop a massive amount of weight in the six months after giving birth to her daughter.

The new mom has happily posted sexy selfies of herself onto her Instagram account, one in particular featuring a tiny swimsuit that flaunted all of her assets.

The 33-year-old reality star was recently spotted on November 30th strutting her slimmed-down figure on the beach wearing a skimpy white bikini. The two piece on the blonde cover girl featured a revealing white triangle top and matching side-tie bottoms.

[To check out photos of Kim Kardashian in Us Weekly click HERE]

This is a big step for Kim Kardashian since she has endured an immense amount of negativity and cyberbullying for the weight she gained while pregnant with her and Kanye West's baby earlier this year.

A source close to the Kardashian Kollection designer revealed, "Kim feels confident again," adding, "She worked really hard and is so motivated to stay fit."

The star previously admitted, "I was really hurt by everyone criticizing me when I was pregnant. It was really harsh. I felt bullied throughout my pregnancy, and that was awful."

She went on to reveal, "I've been doing the Atkins diet, but of course, I have my cheat days."

The starlet added that her meal plan is heavy on protein, nuts and avocados and that she also attends classes at Barry's Bootcamp and Pilates Plus to stay in shape.

What are your thoughts on Kim Kardashian's post baby body? Let us know in the comment section below.