I began exploring my body around 13 or so. I came of age in the late 70's and early 80's, when every gorgeous TV star and musician and "Playmate" had a poster or two or three, wearing a bikini or teeny-tiny shorts, or (later in the 80's) spandex workout gear. I had several of these posters tacked to my bedroom wall where I could see my favorites as I fell asleep.
I started having sex dreams around this time, and often I would wake up remembering who it was that I was having sex with. I noticed that if I focused my eyes and thoughts as I fell asleep, on the poster at the foot of my bed, I would dream of sex with that woman. Over time, I "programmed" my dreams so I could wake up right before orgasm and make myself come while staring at the poster of the woman in the dream. I could do this twice a night, even after pleasuring myself in my bedroom before going to sleep. Sometimes I would go through a box of tissues in a week!