Could be an advertisement for bikini, shampoo, cream or even water-resistant makeup.
She then follows with a quick montage of having sex with other people and bound by rope.
They finish with Alexandra leaning over on her side as the guy holds her up with one hand on her leg and the other grabbing her left breast.
The busty American actress became well known for her work on Percy Jackson in 2010.
She then rides the guy while facing him before turning around.
Paparazzi were there and took some great shots.