Triolism is a term that is used in the field of medicine, to refer to a type of paraphilia, which is based on the need that a person has to observe their partner have sex with one or more individuals at the same time, either of the same sex or the opposite sex. For an individual who presents this type of impulse, it is necessary to be able to observe other people having sexual relations in order to achieve sexual pleasure, being very likely their incorporation into the group they are observing. This is one of the reasons why the porn industry is based on the idea of generating sexual pleasure in people through erotic images.
When an individual presents this type of behavior, it is very likely that he has the sensation of pleasure when being present in a sexual act, whether this action is live or has been captured in photographs or video. In the same way, said person can feel the same pleasure if he observes other individuals. One of the forms of triolism that occurs with some frequency is to observe the couple when they are having sex with a third person, which can be seen as a form of candaulism., which refers to the pleasure of forcing the couple to have relationships with third parties or, failing that, to undress in front of others, as well as showing third parties some sexual situation carried out by the couple and that has been captured in photographs or videos.
There are experts who affirm that troilism originated as a result of voyeurism, a paraphilia characterized by the fact that people tend to feel pleasure when observing a figure that shows nudity, that is to say that it is not necessary for them to engage in a sexual act.
Triolism is often seen as shameless behavior that is even considered spontaneous and that for some it is something dirty that usurps the instincts of sexuality. There are people who even have a disinterested attitude, who may feel pleasure in lacking any caution in this regard, but in many cases it is only a mask that seeks to hide the feeling of guilt for such acts.