Bradley Cooper has moved Suki Waterhouse into his mother's home

A source told The Sun newspaper: "When Suki is in LA by herself for auditions she'll stay in the house with Gloria. They get on well and it doesn't matter that Bradley isn't around. He's often away in London working."

Bradley, 39, is also believed to have stayed with Suki's parents while he was filming in London, sparking yet more speculation that an engagement could be on the cards for the pair.

Rumours that the couple are planning to tie the knot first emerged last month when it was reported that the hunky actor and his stunning girlfriend were already planning their big day to coincide with Bradley's 40th birthday.

A source said at the time: "Bradley wanted to wait until his 40th before getting hitched as he's been married before. It's very important for him now that they seal their love.

"Bradley and Suki spend a lot of time daydreaming and planning their nuptials.

"They know they want to get hitched in the States, most likely LA, because they want it to be hot. But it's likely to be a very small, private affair."