The 32-year-old "Keeping Up with the Kardashians' star is expecting her first child with rapper boyfriend Kanye West, reported Digital spy.
"I've tried to stick to what I'd usually wear but you obviously have to change it a little bit. You try things you think will work, but they don't always work! Anything stretchy works.
"So long as you feel good in something, you'll feel sexy, too. I think there are different versions of sexy," Kardashian said.
"There's overly sexy, where you're showing off and it's, like, short and tight. Then there's sophisticated and sexy; and then there's effortless and sexy, not showing any skin. You can wear a turtleneck and have that be super-sexy. I guess it depends on what sexiness is to you," Sigler said.