This Week's Parties: Jennifer Garner, Ben Affleck, and Naomi Watts at John Varvatos's 10th Annual Stuart House Benefit

It was an Oscar couples reunion at John Varvatos's 10th Annual Benefit this weekend, where Liev Schreiber, Naomi Watts, Ben Affleck, and Jennifer Garner were all on-hand to support Stuart House, a treatment center for children who have suffered sexual abuse. Garner began her involvement with the cause eight years ago, and now she and her husband are co-chairs of the benefit. "She told me about what she saw at Stuart House and what the children had to go through after being subjected to these kinds of assaults, and how important it was to have people there who were caring and thoughtful and going to do this the right way,” explained Affleck at the benefit, held at Varvatos' boutique in West Hollywood. The event featured a live auction to support the House, as well as a performance by Aerosmith. "You just see the outpouring of people that want to be part of such an important cause and to me that's the most important thing that we've done over the last ten years," host Varvatos added. "To really raise the awareness and raise money to support helping these young kids." To find out how you can help Stuart House, visit 911rape.org.

Plus, click through to see more from parties this weekend!

— Carita Rizzo