Reese Witherspoon, Avon Global Ambassador and Honorary Chair of the Avon Foundation, joins walkers at the Avon Walk for Breast Cancer Washington, D.C. on Sunday. The weekend-long event attracted 3,500 participants who raised $8.1 million.

Here’s what Reese, 32, had to say at the event:

On her kids Ava, 8, and Deacon, 4: “[They have] always kind of known me to be who I was, and if people know Mom at the grocery store, I think they kind of like it. Obviously, if you’re not having the greatest day, it’s not always easy, but for the most part, (fame) brings a lot of positive things into our life.”

On her role as an Avon ambassador: “I’ve always been very focused on creating positive images and doing things to give back to women.”

On her Four Christmases co-star Vince Vaughn: “He’s great! He’s so funny. We had a great time riffing off each other. Sometimes I would just cry from laughing so hard.”

On her daughter Ava: “She has a very giving spirit, so it’s great to encourage that. There’s a great responsibility to educate your children and show them what’s important in life, which includes giving back.”

On why she participated in this event: “I am very excited to be partnering with the Avon Foundation and to help them continue to affect real change. I feel a great responsibility in my own life to give back to society. As the Honorary Chairman of the Avon Foundation, one of my first experiences last year was to meet Avon Walk walkers at a training walk in Los Angeles. Now I am proud to support the Avon Walk for Breast Cancer here in Washington, D.C. and hope my presence can in some measure express my deep appreciation for all the women and men who participate in the Avon Walks, and for all of the people who dedicate their lives to breast cancer research and care.”

15+ pictures inside of Reese Witherspoon walking for breast cancer… More Here! »

Reese Witherspoon goes for a run around the Brentwood country club and then enjoys lunch with a friend in Santa Monica on Wednesday.

While Reese was able to join a friend for lunch this time, she had her hands full with her children on Monday.

Reese is currently working on a computer animated 3-D film, Monsters vs. Aliens. When a meteorite from outer space hits a young girl (voiced by Reese) and turns her into a giant monster, she is taken to a secret government compound where she meets a ragtag group of monsters also rounded up over the years.

Monsters vs. Aliens is scheduled for a March 2009 release from DreamWorks Animation.

15+ more pics of Reese licking up and chowing down her lunch…

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Reese Witherspoon takes her children Ava and Deacon out to eat at a restaurant in Ojai, Calif. on Monday.

Last week, Reese appeared on Idol Gives Back, and visited the New Orleans Children’s Defense Fund (CDF) Freedom School.

Reese, 32, can be seen later this year in Four Christmases, where she co-stars with Vince Vaughn.

Four Christmases is the story of a young couple, each of whose parents divorce and then marry other people. This leaves the newlyweds with four parental households to visit over the course of Christmas Day.

10+ more pics of Reese spoon-feeding her kids…

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Reese Witherspoon (in L.A.M.B.) is nothing but smiles during the taping of the American Idol special, Idol Gives Back, at the Kodak Theatre on Sunday in Hollywood.

If you haven’t already seen, check out the pictures of Reese visiting a New Orleans Children’s Defense Fund (CDF) Freedom School for Idol Gives Back.

Watch Reese’s appearance this Wednesday, April 9 @ 7:30-10:00 PM ET/PT on FOX.

15+ pictures inside of Reese Witherspoon @ Idol Gives Back… More Here! »

Reese Witherspoon visits a New Orleans Children’s Defense Fund (CDF) Freedom School where at-risk children learn to become community leaders.

Her experience down in New Orleans will air on the American Idol special, IDOL GIVES BACK, airing Wednesday, April 9 @ 7:30-10:00 PM ET/PT on FOX.

Reese has said, “Once you have children in your life, you can no longer close your eyes to people… who are in a similar situation.”

Last year, Idol Gives Back raised $75+ million for charity. Other pictures below feature Idol judges Paula Abdul and Randy Jackson visiting children from Goshen Elementary school in Goshen, Calif. More Here! »

Reese Witherspoon spends a day on the farm in Vincent, California with her kids Deacon and Ava and end up buying two pet pigs to bring home on Friday.

Speaking of pigs, the Reese Witherspoon produced film Penelope, has grossed $8 million since its opening on Feb. 29. The modern romantic tale is about a young aristocratic heiress born under a curse (a pig’s nose!) that can only be broken when she finds true love with “one who will love her faithfully.” Christina Ricci and James McAvoy costar in the film.

Also, a quick HAPPY BIRTHDAY to Reese who turns 32 today!

More pictures of Reese Witherspoon pigging out with Deacon and Ava… More Here! »

Reese Witherspoon makes a morning trip to the W Hotel while beau Jake Gyllenhaal pays for his parking after leaving a Medical Center in Beverly Hills on Tuesday.

Peep the little birdies on Jake’s shirt!

Reese later grabbed lunch at Le Pain Quotidien Bakery in Beverly Hills. GYLLENSPOON 4EVA!!!

10+ pictures inside of Reese Witherspoon and Jake Gyllenhaal running their morning errands… More Here! »

Reese Witherspoon will lend her voice talents to DreamWorks Animation’s latest film Monsters vs. Aliens, according to Variety.

The top-earning actress in Hollywood will join Hugh Laurie, Will Arnett, Seth Rogen, Rainn Wilson, Stephen Colbert, Kiefer Sutherland and Paul Rudd in DWA’s first film produced in Ultimate 3-D technology.

Here’s what Variety had to say about the plot: “Story, which reinvents the classic ’50s monster movie as a modern-day action comedy, centers on California girl Susan Murphy (Witherspoon), who is unexpectedly clobbered by a meteor full of outer space gunk and mysteriously grows to 50 feet tall. She is captured and held in a secret government compound. The world learns that the military has been quietly rounding up other monsters over the years, including the brilliant but insect-headed Dr. Cockroach, Ph.D. (Laurie) and the macho half-ape, half-fish the Missing Link (Arnett).”

Monsters vs. Aliens won’t be released for at least another year — March 27, 2009!