Sidewinder, Side Breasts Cleavage Girl

The anatomical term for the area that constitutes a cleavage is intermammary cleft, intermammary sulcus or sulcus intermammarius.
Décolletage is the upper part of a woman's torso, between her waist and neck, comprising her neck, shoulders, back and chest, that is exposed by the neckline of her clothing. However, the term is most commonly applied to a neckline that reveals or emphasizes cleavage.
When the side of the breasts are uncovered, it is known as "side cleavage", "sidewinders" or "sideboob". In early 2010s side cleavage was identified as a fashion trend. Gabriele Hackworthy, fashion director at Harper's Bazaar, said, "The look is unlikely to fade fast, with Yves Saint Laurent and Roberto Cavalli both pushing the silhouette next season."