Pink has always been the color of all things sweet and nice. Pink is actually a lighter shade of the color red. Red as is popularly known, the color of passion and passion is generally linked with violent, animalistic attitudes. When the color is toned down to pink, it emerges as the softer side of passion and becomes an expression of love and romance. Thus, the color is supposed to evoke feelings of tenderness and gentle behavior, both of which are quite essential to the art of lovemaking.
Pink has a deep association to the female sex and very often anything colored in pink is automatically pronounced feminine. The tradition has gone so far as to make women who have no pink in their wardrobes stand out as prude and tomboyish. Pink has thus been changed in to a form of sexual discrimination. However, this thought should not stop anyone, regardless of sex, from wearing pink underwear since pink after all is just a color. Nonetheless, most types of pink underwear are designed to fit women exclusively. 
Pink panties for women come in every possible underwear style from bikinis to thongs to g-strings. Women also have access to a large variety of pink shades from pale to burgundy as well many patterns. Pink underwear is available in leather, silk, cotton and even rubber. 
Very often, the fabric will incorporate pink as a theme and center the design of the undergarment on the color. Theme such as flowers, teddy bears and candy can be printed on the on the fabric and these look the best in pink.
Pink is a favorite underwear color among children and even plain pink panties are a large hit in this age group. For children, fun designs such as dolls, pumpkins and cartoon characters such as Winnie the Pooh and Goldilocks are used to dress up the patterns. Designs are usually absent from pink underwear meant for men. For males, pinks restrict themselves to generally briefs and boxers, that too only in pale shades.