The Official Tumblr Blog of Comedy Central. Go ahead, laugh in our face. Info: Korean Girl Sex Gif Tumblr. More info: Korean Girl Sex Gif Tumblr. In women, the breasts overlie the pectoralis major muscles and usually extend from the level of the second rib to the level of the sixth rib in the front of the human rib cage; thus, the breasts cover much of the chest area and the chest walls.