One of the common types of sex in pornography is the [Ass To Mouth] (or [ATM]/[A2M]) in which the man removes his penis from a sluts anus and, without cleaning it, places it in her mouth or the mouth of another [slut]. The cleaning of the penis is excluded for the sake of increased sexual excitement. Pleasure (for the man and the audience) that comes from knowing that the slut is injesting fecal matter (present on the penis in a quantity so small as to almost always be invisible to the naked eye) which is unhygienic. When she does this, the female is expressing disregard for her own health and accepting the implicit imposition of the idea that her well-being is of no great concern anyway.
The female who performs an A2M on camera is a highly-evolved slut, fully conscious of her role/purpose and willing to give her body over as a tool for male sexual gratification. In her quest for a great orgasm of her own the slut may, or may not, derive sexual pleasure from doing things that are considered taboo. While some sluts are aroused precisely because of the taboos associated with playing with the anus, others truly delight in the experience of stimulating or being stimulated anally.
Ass To Mouth is a mainstay of [porn] where men are depicted as dominating/degrading the whores for the erotic pleasure of the (mostly) male audience. The appeal is that the sex is bad
