Robert Pattinson is living in Kristen Stewart's home.

The 'Cosmopolis' star - who split from Kristen following her rumoured affair with her 'Snow White and the Huntsman' director Rupert Sanders in 2012 - is back in contact with his former co-star and often stays at her Los Feliz house when he travels to Los Angeles so he can spend time with their dogs, Bear and Bernie.

A source told ''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. This gives him the chance to hang out with Bear and Bernie. ''

However, the source insists the pair are not dating.

They explained: ''Rob and Kristen aren't romantic or anything, but they are still really close and would do anything for each other.''

While Rob, 28 and Kristen, 24, have managed to remain close friends, the 'Water For Elephants' star is believed to have fallen out with his once rumoured ex-girlfriend Katy Perry after failing to pay her enough attention at an after party following the premiere his new film 'The Rover' in Los Angeles.

A source said: ''Katy arrived and went over to Rob and they were hanging out.

''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.''