Justin Timberlake has asked Jessica Biel, to move in!

Can it be that Justin Timberlake, 27, has really asked his girlfriend, Jessica Biel, 26, to move in to his six-bedroom mansion? An insider tells In Touch Magazine:

“Jessica is preparing to live in Justin’s Hollywood Hills home. They’re both really excited.”

But Jessica appears to have a backup plan. She is also hanging on to her own Brentwood, Calif., home:

“Jessica’s giving the house to her parents and brother because she doesn’t want to sell it.”

This is an unprecedented relationship step for Justin who has been with Jessica since January 2007, but the insider insists that he’s ready:

“They’re definitely headed for marriage. Moving in is just the beginning.” 

We’ll see!