Christie Brinkley, Alexa Ray Joel Pose In Bikinis

Aug 18, 2013 | Updated Aug 19, 2013

Christie Brinkley and her daughter Alexa Ray Joel looked more like sisters as they vacationed in the Hamptons this weekend.

The 59-year-old model and her 27-year-old daughter posed in bikinis while fishing near Montauk, N.Y., taking to Instagram to share some sexy snapshots.

In the pics, Joel -- Brinkley's only child with ex-husband Billy Joel -- rocks a tiny white two-piece while her mom dons a bikini top and navy blue shorts. The duo was also joined by Brinkley's son Jack.

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