They want to be watched and they want you to watch them, and lots of people do watch them.
Every day people log in to their favorite webcams and watch their favorite webcam people.
There are a number of popular, commercial webcam websites that allow people to openly masturbate on camera while others watch them.
Using similar sites, couples can also perform on camera for the enjoyment of others.
In "real cybering" personas often remain in character throughout the entire life of the contact, to include evolving into phone sex, and meatspace encounters while in character, as a form of improvisation, or, nearly, a performance art.
Often these personas develop complex past histories for their characters to make the fantasy/roleplay even more life like, thus the evolution of the term "real 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? " or a request for "C2C"/"C4C" ("cam to cam" and "cam for cam", respectively).
To them, it's like watching an addictive soap opera.
They sit and watch these people and places with the need to see what will happen next.
There is disagreement over whether cybersex is a form of infidelity.
While it does not involve physical contact, critics claim that the powerful emotions involved can cause marital stress, especially when cybersex culminates in an Internet romance.