Dressed in sheer white lace, her underwear proudly – and deliberately – on display, it was clear Kim Kardashian was feeling her best.
And as the new mother unveiled the stunning results of her post-baby diet and exercise regime, it soon became clear just how happy she was to have lost her baby weight.
‘Actually I got on the scale today and it said that I am 50lbs down. That made me so excited,’ she said, as she made her big reveal on Jay Leno on Wednesday night.
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The 33-year-old said gaining weight while pregnant with daughter North was not easy.
‘I can honestly say it was the greatest challenge of my life,’ she said.
And she confirmed reports she lost the weight on the Atkins Diet, adding ‘it worked for me’.
Kim also revealed she chose the diet after it was previously successful when both she and her late father Rob tried it when she was a college student.
Kim said the ‘ridiculous’ criticism she received for putting on the weight while pregnant wiwas incredibly painful.
‘It really hurt my soul,’ said the reality star. ‘It changed how I am in public. I’ve tried to live more of a private life.’
The Keeping Up With The Kardashians star attributed her apparently bloated appearance during pregnancy to preeclampsia, a life-threatening condition that raises blood pressure, which she said led to her five-week premature delivery.
‘That was a cause for a lot of the swelling and at the time I didn’t know what was going on,’ she said.
Kim showed off the impressive results – achieved by following the high-protein Atkins diet – in a daring lace dress.
She wore her blonde hair sleek and wavy over her shoulder and kept her makeup fresh and natural.
Kim and new fiance Kanye West kept out of the public eye following the birth of their baby in June, but she denied they went into ‘hiding’.
‘I just wanted to have time with her and be with her. This was the one time in life that I could just take off and spend time as a family with me, and him and the baby. So we both took a maternity leave,’ she said.
But Kim said her life is going well at the moment after Kanye surprised her with a lavish marriage proposal on her 33rd birthday last week.
‘I’m very happy right now,’ she said. ‘[The proposal] was the most magical night of my life.’
And she described the night in detail.
‘I thought we were just going to dinner for my birthday,’ explained Kim. ‘He just told me to close my eyes… he covered my eyes.
‘I thought I was going to fall and he was totally helping me [out of the car]. It’s so it his personality to do something wild for my birthday.’
Even though she found herself standing in a baseball field, Kim still didn’t guess what was about to happen.
‘My favourite Lana song started playing, Lana Del Rey Young And Beautiful. And I was like, Oh my God he got Lana to play for me on my birthday.
‘I thought that was my birthday surprise. And she doesn’t get out and he goes down on his knee. And I was shaking the entire time.
The big scoreboard said please marry me. I said yes.’
After Kanye proposed, Kim’s family rushed the field.
‘The whole family thought they were there for my surprise party, and I thought they were in Arizona. He told them a surprise party, I need you guys there.
‘The look on their faces – I turn around and see them balling.’
But the couple haven’t yet had the chance to discuss their wedding, although Europe might be on the cards as a possibly venue.
‘I want [Kanye] to have whatever he wants,’ she said, adding that ‘someplace Parisian’ might be an option.
The pair are ‘hoping for next summer,’ she said, but they ‘haven’t had time to sit down and talk about it.’
Kim also gushed about her daughter, nicknamed Nori, calling her ‘the sweetest little girl.’
‘She never cries,’ Kim said of the four-month-old. ‘She’s a perfect little angel. I hope she grows up to be smart and opinionated like her dad.’
Kim also confirmed that she plans to take her husband-to-be’s last name.
‘It’ll definitely be West,’ she said. ‘My daughter’s name is West, and we’re a family.’
But it wasn’t all happy.
Kim also opened up about her family’s recent troubles, confirming that her mother Kris Jenner has split from her husband Bruce.
‘They are [separated]. And it is for the better, and the best way.
‘I think they are better living in two separate homes. They get along better. I’d rather them live together and be happy.
‘They are better friends now.’
Perhaps surprisingly, Kim said Bruce would still walk her down the aisle, saying simply ‘of course’, in answer to Leno’s question.
‘Our family I would say is the biggest most happiest dysfunctional family,’ she added.
And of sister Khloe she said simply: ‘She’s doing good, she’s doing really good. And I think all you want for your family is to be happy.’
Read more: The Tonight Show with Jay Leno | NBC