They may not be engaged but things seem to be getting serious between Justin Timberlake and Jessica Biel.

The couple moved in to a new apartment in Manhattan yesterday, the first time the pair have officially lived together.

Dressed down in trainers, Justin and Jess - who hooked up in January 2007, following Justin's split from Cameron Diaz - were snapped by our spies holding clothes and bags at the entrance to their new home.

And it's not just new furniture that has been on Justin's mind.

The star debuted his new fashion line with William Rast at New York Fashion Week yesterday, where he took to the runway in his own gear.