Riccardo Tisci says Kim Kardashian is the ''most beautiful pregnant woman'' he has ever dressed.

The Creative Director for Givenchy was thrilled when the reality star approached him to design her gown for the 2013 Met Ball on Monday (06.05.13) and he thinks she looked fabulous in the floral dress while accompanying her boyfriend Kanye West, who performed at the prestigious event.

He gushed: ''She is a really good friend, and I am very happy she came to the Met for the first time. I love Kim. Doing maternity was fantastic.

''She is the future wife of a really good friend of mine. I wanted to have a moment of family ... Kim, Kanye and the baby. It will be a family that I will be close to. Kim said, 'Ricky, I love what you're doing so much, I am in your hands.'

''I have dressed many pregnant women in the past. People can say what they want. To me, pregnancy is the most beautiful thing in the world, and when you celebrate something, you give people flowers. I think she looked amazing. She was the most beautiful pregnant woman I dressed in my career.''

Givenchy was worn by dozens of stars on the night, including Rooney Mara and Beyoncé, but Tisci thinks pop star Madonna should be crowned ''queen'' of the ball in her edgy ensemble, which the designer made sure to cater to the 'Punk: Chaos to Couture' theme.

He added to WWD: ''To me, Madonna was the queen of punk last night. Madonna and I did the red carpet together. We did interviews together. We collaborated. With women and men, I like to sit down and talk about what we want to do.

''I don't like to be lazy and just take a dress and say, 'This dress is nice, I am sure Madonna would wear it.' I am very honest with them. I am not just dressing them to send clothes but to celebrate their beauty and talent.''