Although Milo Ventimiglia and his co-stars have been denying any romantic interest between Milo and Hayden Panettiere, news just came out stating that Milo and Hayden are dating.
News has it that Milo and Hayden attended a Christmas party at the Water Grill in LA, where he toasted to Hayden and told his co-stars that they were dating.
An eyewitness tells In Touch Weekly magazine, "He called her his girlfriend and said that he loved her."
The couple spent the rest of the party sitting together and holding hands.
In Touch is a mostly reliable source, but still I cannot say with certainty that this is true. The report is somewhat confirmed by People Magazine (via bosh):
According to a fellow diner, Panettiere and Ventimiglia arrived together and sat next to each other as the young starlet rested her arm on her costar throughout the meal. Eating family style – the waiters put the food in the center of the table – the castmates helped themselves to whatever they wanted and laughed loudly over their meal
Update: People has provided additional confirmation of the story from another friend.
"Hayden’s mom adores Milo. She thinks he’s so cute," a family friend tells PEOPLE. "She tells her friends that he’s her boyfriend. She’s very proud."
The friend says that Milo has met the entire Panettiere family, including Hayden’s grandparents, and is good friends with her little brother.
"At first it doesn’t seem like there’s a big age difference, but then you do see it. … He’s more proper and reserved, and she’s still playful and very girly."