Alessandra Ambrosio stars as a scientist in a new fashion campaign for Replay.
The Victoria's Secret model donned a white lab coat as part of a new advert for the clothing brand's new Hyperflex Jean collection.
The brunette beauty plays a studious scientist who measures the elasticity of the denim trousers by watching various sportsmen take part in an experiment.
Footballers Gerard Pique, Luis Suarez, Andres Iniesta and Ivan Rakitic took turns to twerk and dance around in the jeans to emphasise the flexibility of the slim fit design.
Replay boasts that the innovative fabric - which is made from a blend of Lycra and Poly with an external cotton layer - offers customers an "ease of motion, great shape retention - no sagging or deforming even after considerable wear - and a luxurious feel."
The jeans retail at £145 and come in a variety of shapes and washes, including white and classic blue.
Replay have also revealed that they will be bringing out two additional jeans in black and grey from December as well as a brightly coloured range that launches in February 2015.
Alessandra later took over the company's Twitter account, as her scientist alter-ego, Dr. Ambrosio.
She posted: "Dr. Ambrogio here #hyperflex #jeans #Twerking test is about to starts. (sic)"
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