Jennifer Garner loves Ben Affleck's Batman body transformation!

Los Angeles - Jennifer Garner feels like she's having an affair because Ben Affleck's body has changed so much.

She is incredibly impressed with the physical transformation her spouse has undertaken while bulking up to portray Batman in Batman v Superman: Dawn of Justice.

Speaking on Live with Kelly and Michael, she said: "You know, he has put on 30 pounds of muscle and he's 8% body fat. He looks pretty good.

"It's a little bit like, 'Whoa, who are you?' It feels like I'm having an affair. But I don't mind, I'm not complaining!"

While Jennifer is impressed with Ben's new project, he recently admitted their three kids, Violet, eight, Seraphina, five, and Samuel, two, "couldn't give a shit" about the superhero saga because they prefer Disney's animated adventure Frozen.

He said: "People always say, 'Are your kids into it?' No, they're not. If I was doing the sequel to Frozen, I would be a hero. My two older daughters couldn't give a shit about Batman.

''They love Frozen. And the indignity is so great that they have now passed that affection onto my son. He's like, 'Papa, can I watch Frozen?' and I'm like, 'No, dude! It's not on again!'"