Jessica Alba Says Leaving Daughters At Home Is Growing More Difficult

After welcoming daughter Honor Marie in June 2008, Jessica Alba gave birth to her second little girl, Haven, in August, and so far, the actress says sibling rivalry hasn't reared its ugly head in their home.

"[Honor] loves being a big sister," Jessica told Access Hollywood at March of Dimes' 6th Annual Luncheon for Babies in Los Angeles on Friday, when asked how the two girls were getting along.

PLAY IT NOW: Jessica Alba Talks Being A Mommy Of Two

While the 30-year-old "Machete" beauty enjoys the challenge of being a working mom, she admitted leaving her two little girls is becoming more and more difficult as Haven's personality begins to blossom.

"Every time [I] leave the house it is [difficult]," she told Access. "It's always like I want to be back and I want to cuddle.

VIEW THE PHOTOS: The Sexy Ladies Of Sci-Fi

"Haven's smiling all the time and cooing," she continued. "She's really cute!"

Though it's tempting to stay home with her girls, Jessica said supporting March of Dimes is a cause too close to her heart to be ignored.

"I love the work that March of Dimes does. Being a mother of two, I know how important it is to have healthy children," she said. "The work that they do with women to ensure that their babies are healthy is really important, and it's really the only way that you can ensure babies have the best start at life."

VIEW THE PHOTOS: Fantastic Mom Jessica Alba!

Luckily, Friday's luncheon had an extra perk for the actress - close proximity to her daughters.

"I live up the street, so I get to go right back home!" she told A! ccess wi th a laugh.

VIEW THE PHOTOS: Hollywoods Hottest Moms & Their Loveable Little Ones

Copyright 2011 by NBC Universal, Inc. All rights reserved.This material may not be published, broadcast, rewritten or redistributed.