The adorable couple
stepped out together for An Unforgettable Evening, a gala fundraiser benefitting the Women's Cancer Research Fund in Los Angeles on Thursday, where they stopped to talk with ET's Denny Directo about their adorable grandkids.
"We're the cool grandparents," Wilson shared.
"I think [we're] the most cool," Hanks added.
"When you have grandkids, if you're with one of them -- or all three of them – look, there's no book, no radio, no TV. You're going to be entertained by them every moment that you're there," Hanks marveled. "Sit back and watch the show!"
However, the couple admit that their grandkids aren't necessary as enthralled by them.
"I think they just put up with us," Hanks joked.
"Sometimes they just look at us like, 'What?'" Wilson chimed in.
The happy star couple also opened up about supporting the Women's Cancer Research Fund and their annual charity gala.
"I think this is our 20th year," Wilson said. "So, for us, it's really meaningful that people still turn up."
Wilson said she has "fortunately" remained healthy since, adding, "Every day without cancer is a good day."