Is it normal to have an imaginary sex buddy?

This is REALLY weird.I started having sex dreams of myself and this unknown guy lets call him Mr X. At first they were every once in a while so I didn't think much of them, then they started to become more and more frequent like every day and the story of our "relationship" became more detailed in these dreams.Mr X has even been coming into my imagination in the daytime. Do you think Mr X is a sign of someone I'm gonna meet? I really do hope so cus he is fineee and our "sex" is the bomb.com lol. If not then what?