Bikini-Wearing Emily Blunt Shows Off Baby Bump in Hawaii With Shirtless John Krasinski and Bradley Cooper: Exclusive Pics

British actress is in the bloom of pregnancy as she enjoys island living with her hubby and their similarly famous friend

Emily Blunt is in the bloom of pregnancy!

The British actress, who confirmed that she was expecting in September, was looking radiant while enjoying R&R time on an Oahu beach yesterday with husband John Krasinski and their pal Bradley Cooper.

Blunt, in beachwear by Seafolly, was wearing a very island-appropriate flowing green dress, but she also stripped down to her bikini top and bottoms, showing off her bare baby bump while sitting in the sand.

And though nothing usually gets between a celeb, her naked pregnant belly and the spotlight, Blunt was hanging out with a shirtless Cooper and equally shirtless Krasinski.

So, forgive our eyes for wandering.

Cooper and Kraskinski costar in Cameron Crowe's latest film, an as-yet untitled romantic drama starring Cooper as a military contractor torn between an old flame (hence the pics of him and Rachel McAdams looking all in love) and his tough new supervisor, played by Emma Stone.

The guys have been in Hawaii for at least a month, while Blunt joined them about two weeks ago.

A source exclusively told E! News that the trio spent several hours on the beach, laughing and taking selfies to document the occasion. We're told they all acted like long-time friends, with Blunt and Cooper even snapping pics and poking fun when Krasinski struggled a bit when the guys went kayaking in the ocean.

Blunt was also very friendly to some fans who approached her on the beach and amiably posed for pictures.

She and Krasinski were quite affectionate with each other, holding hands and appearing very much in love, the source said. Afterward, the couple and Cooper headed back to a private residence (it's unclear if they've all been staying together), where the fellas tossed around a football and continued to enjoy their time off.

But why wasn't this a double date, you ask?

We're told that Cooper's girlfriend, Suki Waterhouse, had left about two days beforehand.

—Reporting by Michelle Falls