"He really is the most romantic, sweetest person I've ever met in my entire life," the reality star told E! News as she stepped out with her mum Kris Jenner, sister Khloe Kardashian and Kanye for The Hollywood Reporter’s Annual Women in Entertainment Breakfast.
Kim also addressed the big question about when she might wed her rapper fiancé.
Asked if she might elope, the 33-year-old replied, "No, not that I know, but he is the kind of random, spur-of-the-moment type of guy, so you never know."
Kim showed off her post-pregnancy figure at Wednesday's event in a citrine satin dress teamed with a yellow coat.
While Kanye stayed away from the red carpet, he was seen cosying up to Kim inside the soiree, which was attended by the likes of Oprah Winfrey, Jane Fonda, Maria Schriver, Demi Lovato and Cat Deeley.
The couple's show of affection continued later that day when they were spotted sharing a tender embrace during a shopping spree in Chanel.
Kim was photographed just inside the luxury store with her arms wrapped around Kanye's neck, while the rapper held her close.
Meanwhile, the mum-of-one recently showcased her post-pregnancy figure by slipping into a bikini for a swimsuit shoot for US Weekly.
Kim has lost 56lbs since the arrival of daughter North West on 15 June by following a strict diet and exercise regime.
Now that she is on the road with Kanye, she has reportedly has a trainer on tour with her and a chef to make sure all her meals are carb-free.
With the exception of some cheat days, because she is realistic now, she sticks with it!," the insider told People Magazine.
"Kim is working out almost every day," the source said. "It's usually running and weight training."
The source added, "It's hard, but she sticks with it pretty much all the time. She's so happy. Life is good."