Hayden Panettiere HPANETTIEREGYM010908_09.jpg Now that Hayden Panettiere's 18, she's finally able to move out from under her family's roof - and into an apartment with Milo Ventimiglia!

In Touch Weekly quotes one of Hayden's friends as saying that the teen queen "wants to live with Milo".

"Now that their secret is out," the source says, "they figure they might as well do what they want - even move in together."

And this isn't just idle chatter, either - In Touch spotted Hayden checking out homes in West Hollywood on January 7th!

In the meantime, Hayden's shacking up with co-star Kristen Bell "as a way to get some space".

How exciting!