Hayden Panettiere has opened up about her past relationship with former Heroes co-star Milo Ventimiglia.

“That's hard. My daughter's 11, so I'm trying to think of how I would feel,” the 36-year-old actress replied to Entertainment Weekly when she asked about her nearly 12-year age gap with Milo.

“I'm sure she's going to do exactly what Mommy did,” continued the actress. “I'm ready and prepared for it, but I think it's about the person. I was working with him all the time."

"My family knew him well. I was also ... At 18, I lived so much life that he almost couldn't count me as being 18. So Milo and I, even though he was 30, had a lot more in common than people might think," she added.

For those unversed, Hayden and Milo met on the set of NBC’s Heroes in 2006. The Ice Princess actress dated Milo for about two years before calling it quits in 2009.

“But if it was somebody that was inappropriate, if it came off inappropriate or was somebody that my parents were like, ‘No, this is just a creepy situation,’ then they never would've allowed it to happen,” said Hayden.

It is pertinent to mention here that Hayden is the mother of a 11-year-old daughter, Kaya Evdokia, whom she shares with her former fiancé, Wladimir Klitschko.