Though these recollections are 45 or more years old, they're still vivid and memorable for me.
Billy's appetite for frequent oral sex grew rapidly following our first encounters. He quickly progressed from turning beet-red and stammering at an offer of a blow job to getting into explicit 'dirty talk.' Gone was those tentative questions and feelers, now replaced with an earthier and more succinct mode of speech. He would frequently ask to suck me off first, or ask me to take my dick out for him to play with it. By now, he was telling me how excited it made him when I ejaculated in his mouth and how much he looked forward to taking my cum. And, sometimes now he would stop sucking me and ask me to jack-off in his mouth! We usually had a large, tiltable dressing close by and he would get incredibly turned on while watching cum squirting on his tongue and mouth. More than a few times that led to him returning the favor to me.
It wasn't long before I was introducing Billy to other pleasurable techniques and tips as well. Our initial encounters were while one of us was standing and the other sitting. Once the bed was added to the variety, new discoveries beckoned and Billy embraced them enthusiastically. Enjoying 69's quickly became a favored past time. Once we experienced our first simultaneous ejaculated we strove to coordinate to do that as frequently as possible. By now, Billy had developed a fondness, should we say, for taking and eating my cum (I was letting him know from the first time onward that he made good cum).