cleavage
Edited by TVW. Previously edited by dimsun.
胸の谷間 魅惑の谷間 けしからん谷間 挟まれたい谷間 乳溝 乳沟 가슴골 谷間
The depression or valley created between a woman's breasts via partial exposure of the chest.
In anime, video games, and art, the cleavage is a popular method of adding some sexual appeal to the character. It should be noted that the cleavage is sometimes shown on characters as merely a curved line, while other times it has an extra, smaller line on the end, making the shape of a "Y" at the top of the depression.
The opposite is breasts apart.