Kim Kardashian is back and hotter than ever! The new mom to baby girl North West who recently got engaged to boyfriend Kanye West is flaunting all of her toned curves for everyone to see following her diet and much criticism from the press.

The "Keeping Up with the Kardashian" star who is sporting a much slender frame following her pregnancy filmed an appearance on "The Tonight Show With Jay Leno," Wednesday, October 30th, according to Us Weekly.

The reality star flaunted her post-baby weight loss in a sheer white-lace dress which displayed Kardashian's black bra and matching underwear underneath it.

The 33-year-old told the host about the harsh criticism she received during her pregnancy. She said, "It really hurt my soul," adding, "It changed how I am in public. I've tried to live more of a private life."

Surprisingly the designer has been keeping a low profile much like her fiancé Kanye West following the June birth of their baby daughter.

But now that she has shed 50 pounds with the help of the Atkins diet Kardashian is feeling more confident. Earlier this month, she shared a revealing Instagram selfie in a tiny white bathing suit which she described as her "big middle finger to the world."

Last week, on her 33rd birthday, her "Yeezus" rapper boyfriend surprised her with a marriage proposal and a huge diamond ring. According to the magazine, Kardashian told Leno, "I'm very happy right now," she continued, "[The proposal] was the most magical night of my life."

As far as her third wedding ceremony she is leaving most of the decisions up to the groom. She said, "I want [Kanye] to have whatever he wants," and hinted at "someplace Parisian" for the upcoming nuptials.

Although, the couple is "hoping for next summer" to say "I do" Kim Kardashian admitted that the two "haven't had time to sit down and talk about it."

She also said she will add West on to the end of her Kardashian name. She explained, "It'll definitely be West," adding, "My daughter's name is West, and we're a family."

Describing North, she said, "She's the sweetest little girl. She never cries," the star gushed, "She's a perfect little angel. I hope she grows up to be smart and opinionated like her dad."

For photos of Kim Kardashian on "The Tonight Show With Jay Leno" click HERE.