Cultural history of the buttocks desirability of buttocks: Since the early 2000s, songs about the female buttocks have proliferated, especially in the hip-hop, reggae/dancehall, and R&B genres. Buttocks are often emphasized in pornography. Patricia Hill Collins, an African-American post-modern feminist writer, theorizes that this is derived from a stereotype that black women are promiscuous, and their buttocks are objectified by pornography as a result. A buttocks fetish or buttocks partialism refers to a condition wherein the buttocks becomes a primary focus of sexual attention. It may be associated with coprophilia, panty fetishism, eproctophilia, and sadomasochistic corporal punishment involving the buttocks. "Pygophilia" refers to sexual arousal
Persistent genital arousal disorder regard to the International Consultation on Sexual Medicine (ICSM). In 2009, "persistent genital arousal dysfunction" was included in its third edition. PGAD is not included in the "Diagnostic and Statistical Manual of Mental Disorders" (DSM-5) or the International Classification of Diseases (ICD-10), which may be due to the disorder requiring further research. The condition has been characterized by a researcher as being a term with no scientific basis. There is concern that the title may be misleading because, since the genital arousal is unwanted, it is dubious to characterize it as arousal. Other researchers have suggested that the disorder be