AnnaLynne McCord marks her 25th birthday… by going for a swim in an elegant evening dress

Wet and wild! AnnaLynne McCord marks her 25th birthday… by going for a swim in an elegant evening dress

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UPDATED:

20:28 GMT, 17 July 2012

AnnaLynne McCord certainly had a birthday to remember as she celebrated turning 25 yesterday.

The 90210 star decided to take a dip in the ocean in Los Angeles – wearing entirely inappropriate attire.

The actress took to the water in a brown evening dress and got soaked from head to toe as she splashed around.

Not your average swimwear: AnnaLynne McCord celebrated her 25th birthday yesterday with a dip in the ocean while wearing an evening dress

Not your average swimwear: AnnaLynne McCord celebrated her 25th birthday yesterday with a dip in the ocean while wearing an evening dress

AnnaLynne went bra-less and barefoot as she rushed into the sea for an invigorating dip, wearing a huge grin on her face the entire time.

It seems the actress also dunked her head under the water as her honey blonde locks, which were tied back in a ponytail, were dripping wet once she emerged.

AnnaLynne’s dress boasted an asymmetrical front, so it was floor-length at the back but at the front short enough to reveal her slender legs.

Feeling the cold: The 90210 star looked like she was having a great time but seemed a little chilly as she stepped out of the water

Feeling the cold: The 90210 star looked like she was having a great time but seemed a little chilly as she stepped out of the water

The starlet was joined by her beau Dominic Purcell who stayed on dry land but proudly watched his other half frolic around in the waves.

He cupped AnnaLynne’s face in his hands and gave her a sweet kiss after she re-joined him on the sand.

Dominic then placed a hand protectively on the 25-year-old’s back as they walked off together.

Kiss me quick: AnnaLynne was joined by beau Dominic Purcell who gave her a sweet smooch once she re-joined him on the sand

Kiss me quick: AnnaLynne was joined by beau Dominic Purcell who gave her a sweet smooch once she re-joined him on the sand

Protective: Dominic had stayed on dry land to watch AnnaLynne and lovingly placed a hand on her back as they walked off together

Protective: Dominic had stayed on dry land to watch AnnaLynne and lovingly placed a hand on her back as they walked off together

The Prison Break star, who is 17 years AnnaLynne’s senior, was dressed casually and wrapped up warm in skinny jeans, a black jacket and a baseball cap.

Following her risqu swim AnnaLynne spent the evening celebrating her special day with the help of her two sisters, Angel and Rachel.

She posted on her Twitter page: ‘Thank U every1 4 all of UR love! Simple 25th 4 me w/ my beautiful sisters.’

Water babe: AnnaLynne certainly won't be forgetting this birthday any time soon

Water babe: AnnaLynne certainly won't be forgetting this birthday any time soon