Teacher and Student or Boss and Secretary pornography involves sexualized situations which take place between an authority figure, such as a teacher or boss, and an underling, such as a student or secretary, often fake. Using the term shemale for a transsexual woman often implies that she is working in the sex trade. Big Beautiful Woman is a euphemism for an overweight woman and is frequently used in the context of fat fetishism. Foot fetishism, foot partialism, foot worship, or podophilia is a pronounced sexual interest in feet. Fetish cuckolding can have a wide range of expression, from pillow-talk fantasy between monogamous partners to extreme alternative lifestyles, depending on the couple. The term has as its origins Frantz Fanon epidermal schema and Edward Said Orientalism. The stimulation may involve hands, fingers, everyday objects, sex toys or combinations of these. Buck Angel is the best-known actor in this genre. Cum swapping pornography videos gays involves performers trading semen between their mouths. Fantasies of group sex are extremely common among both men and women, and group sex is a subgenre in pornographic momporn films. Sadomasochism does not imply enjoyment through causing or receiving pain in other situations . Bukkake videos are a relatively prevalent niche in contemporary pornographic films. Pornographic films are generally classified into sub-genres which describe the sexual fantasy which the film and actors attempt to create. Transsexual pornography features transwomen performers, who typically have male genitalia and augmented female breasts . Am Abend , one 3d hentai of the earliest pornographic films that have been collected at the Kinsey Institute for Research in Sex, Gender, and Reproduction, starts with a female masturbation scene. Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. With second wave feminism and growth of scholarship in women history and sexuality in the 20th century, the definition of lesbian broadened, sparking a debate about sexual desire as the major component to define what a lesbian is.