Ben Affleck Interviews 'The Town' Co-Star Blake Lively

Ben Affleck took over the responsibility of interviewing his The Town co-star Blake Lively for the September issue of Interview Magazine and made the interview about as awkward as he made her first day!

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Ben couldn't get over how young his 22-year-old co-star was compared to him. He also directed her in their upcoming film The Town.

AFFLECK: I always have to remind myself how young you are. You were three when Good Will Hunting 1997 came out.

LIVELY: laughs Not quite.

AFFLECK: And you've never even seen it. That felt good to me.

LIVELY: You were in Good Will Hunting?

OK! VIDEO: BEN AFFLECK'S ABS TAKE OVER THE TOWN

AFFLECK: But you have your head on pretty straight. You and I had to do a sex scene on the first day of shooting, and you were very poised and comfortable about it — more mature than some of the crew members.

LIVELY: Well, I have a big family and no one ever treated me like a child. They always treated me like an adult, like an equal. But with acting, I think half of it is just acting confident. We stand on these red carpets and pose in these dresses, but we're all only so confident. It doesn't mean we think we're great looking or anything. It's all a façade. But the sex scene was really awkward. It was my first day, so thank you for that.

AFFLECK: You're welcome.

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For more of Ben's interview of Blake, pick up the new issue of Interview on stands Aug. 31. The Town hits theaters Sept. 10.