SWINDON star Billie Piper and her husband Laurence Fox are celebrating the arrival of their second son.

The 29-year-old former Bradon Forest student gave birth on Thursday. Mother and baby are said to be doing well.

The couple, who are yet to announce the name of their new bundle of joy, are already parents to three-year-old Winston.

Following the birth on Thursday Laurence tweeted: “One born every minute. We had our minute today. Couldn’t be happier. Beautiful boy. Everything fine.”

Billie, who starred as Rose Tyler in Doctor Who alongside David Tennant, and Laurence, who played DS Hathaway in the detective series Lewis, married in 2007.

The actress had just begun rehearsals for the play Reasons To Be Pretty, when she found out she was expecting her second child. Last year, the show’s director Michael Attenborough revealed how Billie had “very generously offered to withdraw” from the show after discovering she was expecting.

However he told her that she was the playwright’s first choice for the role, as well as his, and they wanted her to stay on, writing her pregnancy into the role.

“Fortunately the character is pregnant – so with a bit of judicious re-writing we’re all delighted she’ll be with us,” he told the press at the time.

“I told her that I’d love her to do it and she just wept on my shoulder. She thought that was it. She was thrilled.”

Billie has visited Swindon on numerous occassions since she shot to fame, including for a book signing which saw hundreds of people turn out.

In the past she has spoken of her desire to have more children, saying three would be the ideal number.

Speaking shortly after Winston’s birth in 2008, she said: “I would like to have three children. I’m thinking of having two close together and leaving it a while, then having another.

Talking about her feeling on motherhood she added: “It’s very hard to put into words just how fantastic being a mum is.”