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OTRC: Kate Hudson shows off bikini body, six weeks after giving birth

Kate Hudson appears in a still from the 2011 film, 'Something Borrowed.' (Alcon Film Fund, LLC / David Lee)

Kate Hudson showed off a curvy bikini body while vacationing in the South of France this week, just seven weeks after she welcomed her son Bingham with fiancé Matthew Bellamy on July 7.

The 32-year-old actress sported a sheer white bikini while playing in the water with her Muse front man fiancé and her eldest son, Ryder, 7. U.K. newspaper the Daily Mail posted photos of the actress, who said recently that there is nothing wrong with putting on weight during pregnancy.

"There's nothing to be ashamed of when you blow up," Hudson told Marie Claire in June. "I would be eating ice cream, and my mom would literally pry the spoon away from me, saying, 'You've had enough to last you a lifetime!'"

Hudson told the magazine that she struggled to lose the excess baby weight after she gave birth to her son Ryder in January 2004, but lost the weight after three months of 3-hour-a-day cardio.

"Let me tell you something. It's an emotional roller coaster, having to lose weight," Hudson continued. "I gained so much -- I was 185 lbs at the end. You actually experience how much energy is stored in that and how much emotion you actually hold in that mass. It is emotional, no matter how determined you are. It takes work to bounce back so quickly."

Milano told the magazine that she kept her weight down this pregnancy by eating healthy foods.

Earlier in the month, Bellamy posted a photograph of Hudson cradling their one-month old son (see below) with the caption, "Family life!" In July, Bellamy also used Twitter to reveal their son's name.

"So happy! Just had a baby boy, Bingham 'Bing' Hawn Bellamy. Born 7lb 12oz, on 9th July," Bellamy wrote on the social networking site. Bellamy also explained the origin of the name, writing, "For those wondering, Bingham is my mum's maiden name and Bing Russell was Kurt [Russell]'s dad. Family connections all round!"

Hudson's mother Goldie Hawn also expressed her joy over the baby, writing on Twitter, "Thank you all for your good wishes for the birth of our grandson! We are over the moon! Kate and baby happy and healthy! Blessings abound."

Hudson, 32, first announced her pregnancy in January and became engaged to boyfriend Matthew Bellamy, the baby's father, in April.

It is the first child for Bellamy, the 33-year-old singer of the British alternative rock band Muse. The two have been linked together since early 2010. The couple has yet to announce a date for their wedding.

The actress had her 7-year-old son, Ryder, with ex-husband Chris Robinson of the rock band the Black Crowes. The two divorced in 2007 after almost seven years of marriage.

In June, the actress celebrated her upcoming birth with a baby shower that had a star-studded guest list.