Doutzen Kroes is expecting her second child.

The Victoria's Secret beauty announced the happy news by sharing a tasteful nude photograph on her Instagram account, which sees her showing off her baby bump as she covers her modesty with her hands.

She captioned the black-and-white shot: ''This is not a #throwbackthursday this is now! So happy to share with you that we are expecting''.

The Dutch-born blonde already has a three-year-old son, Phyllon, with her DJ husband Sunnery James.

The 29-year-old model's fans were quick to congratulate her on her pregnancy, with one gushing, ''A mini Victoria's Secret baby'' and another speculating, ''I hope it's a girl''.

Doutzen previously admitted she worried her modelling pictures were making girls feel insecure about their looks and insisted she didn't agree with the use of airbrushing in the fashion industry.

She told the New York Post: ''Sometimes it makes me feel guilty now that I am in this profession that makes certain girls insecure. I always say, I don't look like the picture.''