Feederism has been described as "a fat fetish focused on erotic eating, feeding, and gaining weight." There are two basic types of people who exist in this fetish culture: feeders and feedees. Feeders are people who derive sexual pleasure from feeding other people and watching them gain weight. In contrast, feedees are people who derive sexual pleasure from being fed by others and gaining weight. Feederism is considered to be a paraphilia (i.e., an unusual or uncommon sexual interest); however, the jury is still out on whether it represents its own unique sexual interest, or whether it is best considered a variant of some other established paraphilia(s). For instance, some psychologists have argued that feederism has characteristics that overlap with morphophilia (i.e., sexual attraction to a specific bodily characteristic--in this case, fatness) and with sadomasochism (i.e., sexual arousal associated with physical and/or psychological pain, often involving themes of dominance and submission--in the case of feederism, there are usually elements of power/control and humiliation).

For a revealing look into the world of feederism, check out the video below. It profiles the lives of a feeder-feedee couple who happen to dabble in pornography. As you'll see, they give a whole new meaning to the term "food porn."