Ever wonder how Kourtney Kardashian and Emily Ratajkowski have so much super sexy confidence? It all starts with what they’re wearing under their clothes. The two ladies learned their best tips from none other than their own mothers.

“My mom always taught us that you have to wear matching bras and underwear,” the Poosh founder, 40, divulged about Kris Jenner in a recent video that went live on Wednesday, June 5. The 27-year-old model chimed in, “My mom did the same thing!”

The Keeping Up With the Kardashians star explained that the matriarch of the family had a very good reason behind her unusual advice. “That was, like, her thing. She was like, ‘You have to wear matching bras and underwear. You never know who you’re going to see. You never know if you get into a car accident and you, like, have to take your clothes off.’ Or, you know, she would always tell us these stories,” the mom-of-three hilariously shared.

Kourtney Kardashian Bikini Moments
Courtesy of Kourtney Kardashian/Instagram

Emily also learned how self-care can be practiced in the simplest ways from her own mom. “I was getting dressed when I was, like, 12 … I think we were going to some dinner or something, and she was like, ‘Put on cute underwear.’ I was like, ‘Why? I don’t understand.’ She’s like, ‘It’s just for you. It just makes it feel like it’s a special occasion.'”

Emily Ratajkowski bikini poolside
Courtesy of Emily Ratajkowski Instagram

The model added that the small suggestion helped to boost her confidence, “And I think about that, for me, all the time. Just the little things that you can do for yourself.”

Both ladies agreed that something as simple as undergarments that make you feel amazing in your own skin can affect your whole mood. “It doesn’t make a difference, no one else knows about it, it’s for you,” Emily explained while Kourtney added, “It’s how you feel.”

Confidence comes from within but these gorgeous women prove that it also comes from underneath. *Wink.*