Kristen Stewart and Robert Pattinson
Kristen Stewart and Robert PattinsonReuters

Are Robert Pattinson and Kristen Stewart living together? Rumours of the on-again-off-again couple staying together in Los Angeles surfaced soon after Pattinson revealed on Jimmy Kimmel Live Friday night that he is now homeless!

"Rob doesn't have his own place in LA. When he's in town, he sometimes stays at the Chateau Marmont and very often at Kristen's when she's out of town," a source tells HollywoodLife.com.

"This gives him the chance to hang out with Bear and Bernie (The two rescue dogs that Stewart and Pattinson shared when they dated)".

Bear and Bernie now live full-time at Kristen's house in the Los Feliz neighborhood of LA.

So if Pattinson is shacking up with Stewart, does that mean the two Hollywood stars are secretly a couple again? Well, apparently not.

"Rob and Kristen aren't romantic or anything, but they are still really close and would do anything for each other," the source revealed.

It's interesting that these rumours have come up at the same time as reports of there being a possible 'rift' between Pattinson and his close friend – Katy Perry (who also, by the way, is a rumoured ex) emerge.

Reportedly during the premiere of Pattinson's latest film, The Rover, on June 12, a visible 'distance' could be seen between the two Hollywood stars.

According to an eyewitness, at the premiere's after party, Pattinson completely ignored his once-close friend Perry the entire night.

Katy Perry and Robert Pattinson
Katy Perry and Robert PattinsonFacebook

"Katy arrived and went over to Rob and they were hanging out," an eyewitness told HollywoodLife.com. "Once the buzz started that she was there and once she wasn't getting the attention from Rob that she thought she should be getting, she went outside and hung out with a girlfriend for the rest of the night," the sources added.