By Alexis Tereszcuk - Breaking Celebrity News Senior Reporter

These aren’t your regular, run of the mill grandmas!

But, in fairness, they’re not really grandmothers, they’re just playing them in a movie -- showing off bodies most grandchildren, let alone grandmothers would envy -- blonde bombshells Robin Wright and Naomi Watts stripped down to tiny bikinis Thursday and Breaking Celebrity News has the pictures of their sultry wet look.

Robin, 45, and Noami, 43, frolicked in the waves in Australia while filming their new movie The Grandmothers and neither of them looked in the least bit ready to collect their pensions yet.

Sporting a black bikini, Robin showed off a rocking solid beach body that would be the envy of any 18-year-old.

Meanwhile, Naomi poured her ample assets into a smoking hot purple bikini, soaking up the rays and splashing in the water for the shoot.