Amazing baby news for Fashion Police star Kelly Osbourne!

We can only imagine how excited Kelly Osbourne is following her brother Jack's big announcement that she's about to became an aunt for the second time!

Doting aunt Kelly has made no secret of her love for two-year-old niece Pearl, and she's taken to Twitter to express her excitement that she's about to experience it all over again now that Jack's wife Lisa is expecting baby number two!

Uploading a truly beautiful shot of his wife Lisa and their two-year-old daughter Pearl, Jack took to social media to reveal that the overjoyed couple will soon be adding to their brood and by the looks of Lisa's bump, they've managed to keep it to themselves for quite some time!

The good-humoured TV star, captioned the sweet shot: "Supprise (sic) !!!!! #round2 #babyinbound".

While Pearl's dad kept the details to a minimum, his wife Lisa was a little more candid and opened up about her big news online, saying: "I'm pregnant! Pearly is very happy to become a big sister."

Thrilled that her daughter is so happy with her impending new role, Lisa continued: "She diligently reads her 'I'm a big sister books' every night and recites to me her plans of bathing, feeding, singing to and holding the baby."

Lisa, who married Jack in Hawaii in October 2012 and is almost halfway through her exciting journey, admits that the news has brought the family much happiness, saying: "We are very excited to be parents again! Thanks for all the well wishes."

Congratulations to the happy family and high five to over Auntie Kelly!