When I turned 18 I moved into my stepdad's house. He and my Mom had recently split. I think their divorce woke something up inside him. He began to walk around nude, I even stumbled upon him jerking off a time or two. He started to pay me visits at night after that. I never mentioned it to him the day after and he never said anything about it. It felt so good, I just let it continue that entire summer.
I remember waking up one night, as I had many times before, to the touch of his hand on my stomach. He would slowly rub his hand over me and gradually work his way down to my underwear and slip his hand inside to find my cock already hard in anticipation of what was to come. I always pretended to be asleep while he did this and laid there for him to do as he pleased. He would take my hand and place it on his cock and then wrap his hand around mine, so I was gripping him while he touched me. He always stopped before cumming and went to the bathroom to finish but on this night, I decided I wanted more.
As I laid there in the dark delighting in the ecstasy of both touching and being touched, I decided it was time to let him know I was aware of what was happening. "I'm awake" I said and with that I pulled my underwear off and moved to take his cock in my mouth. He did not stop me; I recall a loud sigh from him as I began sucking his thick cock. I think he had been waiting for me to do this for an awfully long time. Now that I had acknowledged what he was doing and showed my willingness to participate he could enjoy himself so much more.