Duchess Catherine, Kate Middleton

James Whatling / Splash News

Kate Middleton is one yummy mummy-to-be!

In her second official public appearance since announcing her pregnancy, the 31-year-old royal showed off her growing baby bump Tuesday in London. Wearing a gray and white MaxMara wrap dress, Prince William's wife was all smiles as she visited with women in recovery at Hope House Action on Addiction.

The brunette beauty, who is due in July, looked happy and relaxed and extra glowing following the royals' Mustique babymoon. The royal couple was vacationing in an exclusive villa costing approximately $30,000 per week.

Hey, after that early bout with morning sickness, this duchess deserved a little decadence!

As it is, she's back in London and in action, as it was announced over the weekend that her next public appearance will be in the English town of Grimsby on March 5.

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