Cybersex or computer sex or net sex is a virtual sex encounter in which two or more persons connected remotely via a computer network send one another sexually explicit messages describing a sexual experience. It is a form of role-playing in which the participants pretend they are having actual sexual intercourse, by describing their actions and responding to their chat partners in a mostly written form designed to stimulate their own sexual feelings and fantasies. The quality of a cybersex encounter typically depends upon the participants' abilities to evoke a vivid, visceral mental picture in the minds of their partners. Imagination and suspension of disbelief are also critically important. Cybersex can occur either within the context of existing or intimate relationships, e.g. among lovers who are geographically separated, or among individuals who have no prior knowledge of one another and meet in virtual spaces or cyberspaces and may even remain anonymous to one another. In some contexts cybersex is enhanced by the use of webcams to transmit real-time video of the partners.
Cybersex is sometimes colloquially called "cybering". Channels used to initiate cybersex are not necessarily exclusively devoted to that subject, and participants in any Internet chat may suddenly receive a message with any possible variation of the text "Wanna cyber?"
