Before i got my first blowjob (at 24 y.o) i dreamed of getting one. I am a person that dream a lot, or should i say remember his dreams quite often. I often do erotic dreams... maybe because i think of sex a lot lol. Fun thing is when i got a real blowjob, it was a lot like i remembered in my dreams. I dreamed of so many things over the years. When i was young i would have nightmares often, it took me a while to be able to control my dreams, knowing when i was in one for instance, waking up at will ... or deliberately knowing i am in one and enjoying it as much as i can by doing just about everything i want, since there is no consequences... There was a few instances where i lost control tough and i remember specificaly one time where i knew i was stuck in a nightmare, and kept "waking up" in another one, i was yelling "WAKE UP" but just couldn't until after like 8 times... that was one was extremely scary.
Anyway im saying all of this because the fact is if there is a way to control your mind that way, even knowing its not real and yet staying there, im sure it would be possible to create an illusion virtual reality plugged to a machine in the futur. If we could pay to enjoy those sessions, kinda like in Total Recall, i would certainly do. On the other hand the tough of fucking a robot in the real world does not seem much appealing... lol.