Hilary Duff Is "So Proud" of Sister and New Mom Haylie Duff: "She's Really a Natural"

“All About You” singer also reveals her special skill that has baby Ryan so happy

Hilary Duff is ready to come clean about her sister's mothering skills.

Just a little more than a month after Haylie Duff welcomed her first child with fiancé Matt Rosenberg, the new mom's sibling has witnessed a lot in the family's new dynamic.

But as it turns out, Hilary couldn't be more impressed with her sister's parenting abilities.

"She's doing great and I'm so proud of her," Hilary gushed to E! News as her new album Breathe In. Breathe Out hits stores today. "She's really a natural mom."

She added, "She has the baby on a schedule already and she's like four-weeks-old. Little baby Ryan is a cutie."

Earlier this month, fans of the Cooking Channel host were treated to the first pictures of baby Ryan. As expected the precious face is absolutely adorable.

"Ryan loves to sit in her new mamaroo and chill! Lucky mommy!" Haylie wrote on Instagram. "Thanks @4moms_hq #HappyBaby."

While baby Ryan has quickly proven to be one special baby, there is one little thing that the newest family member appreciates in more ways than one. Yes, the newborn loves a little swaddle from her aunt.

"I've been there a lot. I give a mean swaddle so [Haylie's] always calling me like, ‘Come over here! Give this baby a swaddle,'" Hilary admitted. "It's really fun to have a new addition to the family."   

For more on Hilary Duff's new album and family life, watch E! News Wednesday night at 7 and 11 p.m.