AnnaLynne and Rachel McCord match in white bikinis as the sisters pose on a ...

AnnaLynne and Rachel McCord sure had some fun over the weekend as they enjoyed a day on the water.

The 31-year-old AnnaLynne and her 30-year-old sister Rachel matched in white bikinis as they posed away on a luxury boat near Malibu.

They were a part of the Shiseido multi-day celebration for their new skincare and beauty products. 

At sea: AnnaLynne and Rachel McCord sure had some fun over the weekend as they enjoyed a day on the water

At sea: AnnaLynne and Rachel McCord sure had some fun over the weekend as they enjoyed a day on the water

Held at an exclusive beach side home in Malibu, the four-day event brought together the close sisters.

They often hit parties together and are mistaken for each other as they are only a year apart in age.

The McCord sisters were both born in Atlanta, the daughter of a pastor who was home-schooled and graduated from high school when she was just 15.

She began her modeling career shortly thereafter, signing with Wilhemina Models, where she appeared in campaigns for Estee Lauder and Marc Ecko.

A good look: The 31-year-old AnnaLynne and her 30-year-old sister Rachel matched in white bikinis as they posed away on a luxury boat near Malibu. They were a part of the Shiseido multi-day celebration for their new skincare and beauty products

A good look: The 31-year-old AnnaLynne and her 30-year-old sister Rachel matched in white bikinis as they posed away on a luxury boat near Malibu. They were a part of the Shiseido multi-day celebration for their new skincare and beauty products

She transitioned to acting, appearing in The Middle of Nowhere in 2002 and The Transporter 2 in 2005.

AnnaLynne is best known for her movie roles

AnnaLynne is best known for her movie roles

She starred as Loren Wakefield in the 2007 TV series American Heiress, and played Eden Lord on Nip/Tuck.

Her breakthrough role came in 2008, when she landed the role of Naomi Clark on The CW's 90210 reboot, which she starred in for all five seasons.

Her sister Rachel also appeared in a few episodes of American Heiress as well.

AnnaLynne has two movies coming out this year, Wrongfully Accused and Soldier's Heart, which are both in post-production.

Rachel McCord makes her directing debut with the short film A Mini Movie, which she also wrote and starred in.

Also at the event were Kardashian pals Stephanie Shepherd and Jen Atkin.

And there was also Scotty Cunha, Desi Perkins, Jamie Chung, Adrienne Bailon, Nazanine Pimentel, Cassie Scerbo, Gigi Gorgeous, Katrina Bowden, Cara Santana and Catt Sadler.  

Friday was filled with events in the afternoon and evening to celebrate the launch of

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