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Kate Hudson and fiance Matt Bellamy shared a tender moment on the beach in celebration of their new bundle ... baby boy Bingham. So cute!

The 32-year-old actress and her rock star beau hit the sand in Malibu with Hudson's son Ryder for some fun in the sun. For just giving birth less than a week ago, Kate has really bounced back quickly!

Seems as though Matt fits right in with little Ryder, too. Life's a beach for this happy family.

See Matt and Ryder playing in the surf ... after the jump.