As a paraphilia, breast fetishism (also known as mastofact, breast partialism, or mazophilia)[1] is a sexual interest that focuses exclusively on the female breasts, and is a type of partialism.[2] The term breast fetishism is also used in the non-paraphilic sense, to refer to cultural attention to female breasts and the sexuality they represent.
Scientists hypothesize that non-paraphilic sexual attraction to breasts is the result of their function as a secondary sex characteristic. The breasts play roles in both sexual pleasure and reproduction.[3]
Some authors have discussed the modern widespread fascination with breasts among heterosexual males in Western societies, especially in the United States, within the context of sexual fetishism.[4][5][6]