Hollywood star Bradley Cooper is reportedly expecting his first child with girlfriend Irina Shayk, who walked the Victoria’s Secret runway while pregnant.

While Cooper and Shayk, who have been dating for 21 months, are yet to officially confirm the news, a source close to the pair told People magazine they were gearing up to welcome their first baby.

The news comes after Shayk showed off a tiny baby bump on the runway of the famous lingerie show in Paris this week.

The 30-year-old Russian-born model set tongues wagging by sporting two unusually covered-up outfits on the Victoria’s Secret catwalk, which is typically known for its revealing get-ups.

A source told E! News the celebrity pair has been serious about marriage and children ever since they were first spotted together in April 2015.

“[They] just work really well together and want to spend every minute they have free together. Both families love seeing them so happy,” the source said.

The model is reportedly in her second trimester and is “so excited” to be a mother.

Shayk previously dated Portuguese soccer star Cristiano Ronaldo, while Cooper, 30, was last linked to model Suki Waterhouse.