Victoria's Secret model Irina Shayk expecting first child with Bradley Cooper

Irina Shayk just made her Victoria's Secret Fashion Show debut at the Grand Palais in Paris on Wednesday night ... but she had some bigger news to share after the event.

The 30-year-old brunette bombshell revealed she's expecting her first child with actor beau Bradley Cooper!

But by the looks of her show-stopping VS show debut, a baby on the way was the last thing on anyone's mind.

Shayk walked the runway in two sexy lace getups -- and they concealed her growing belly perfectly.

She looked like a sexy siren in a intricate red number she wore underneath a fringe coverup, which was one of the more conservative looks of the night. Her second outfit was a lingerie version of the classic trench coat -- which she wore with a silver bra-and-garter combo.

According to one source, the model is in her second trimester and is "very excited" to be a momma.

The Oscar nominee and Russian model first started dating in 2005, when they were seen in New York City putting on a great deal of PDA.

Rumors they were breaking up caught steam in August after photos of the two at the U.S. Open raised eyebrows. But with the latest baby bombshell, it seems like all is well with the cute couple.

Congrats!