There was a scene in the 1993 movie Demolition Man where Officer Huxley (Sandra Bullock, who hasn't aged a minute) asked John Spartan (Sylvester Stallone, who has aged for every minute Bullock hasn't) if he'd like to have sex. While most of us currently prefer the hunka chunka to simulated sex, with augmented and virtual reality technologies taking grand leaps every day -- this line of development was inevitable. It will also require artificial intelligence software to solidify and nurture that link, providing the stimulation based on learning factors. That's a dour outlook, but at the end of Demolition Man Spartan physically kissed Huxley and her brain reacted to this stimuli like it never had to the headset.