Bradley Cooper is one lucky man!

Model Suki Waterhouse left little to the imagination as she headed to the Mario Testino in Your Face event on Thursday.

Cara Delevigne's BFF looked the picture of poise in a long-sleeved sheer Burberry dress, which she wore over black underwear.

The model teamed the look with patent black heels, a silver clutch, bold red lips and a choppy down 'do.

After posing up a storm on the black carpet, she later uploaded a picture to her Instagram account as she posed seductively with a finger over her lips while standing in front of a poster of P. Diddy.

This comes after reports claim the model moved into her hunky Hollywood actor beau's MUM's home.

The Hangover star - who has been dating the British model since March last year - is happy for the 22-year-old beauty to stay in his mother Gloria's home in Los Angeles while she attends auditions in the city, even if he isn't around.

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."

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