Fiction this is part four of a consenting relationship between adults. Everyone depicted is 18 or older. Skip down to the line break for the sexy part.

The sun was staring to break. I woke up and Zach’s morning wood was pushing hard into the small of my back. We managed to stay in this position all night. I shouldn’t be surprised, I wasn’t restless with Zach. No something about him had calmed me and I slept well. Still, I’m used to waking up as the sun rose and so now here I laid in my son’s twin bed as I felt his manhood on me.

It was two days in a row waking up like this. How had we just started exploring each other’s bodies a couple nights ago? How did I so quickly turn from heterosexual married man and father to someone who fucked and got fucked by a man? My son no less? I wasn’t sure, but this time around I wasn’t going to leave this position until Zach was awake and ready. Is this what life was now? Endless sex and affection with my one and only child?

Of course it wasn’t. This was all a fantasy. Zach and I would never be able to be with each other like this. Hell his mom returns tomorrow and he goes back to college the day after that. Maybe this had all been a horrible mistake, maybe, but I don’t regret it one bit. I cuddled closer to my son making his dick press against me harder. It was then I heard a phone buzz. Thinking it was my own and it might be my wife I reached for the first phone I saw and realized I had made a mistake.

‘Hey Z. You still on to see daddy today? Practice ends around 9 so I expect to walk into my office with you ass up around 9:30. ;) -Coach M.’

My heart sank. I had temporarily forgot about Coach McKenzie. He taught Zach everything he knows about sex so it shouldn’t have surprised me they still fucked once in a while. Zach always goes and visits him when he’s in town and why would this time be different? Not wanting Zach to know I accidentally invaded his privacy I returned his phone to the night stand with a pit in my stomach.

I tried to lay there, maybe even fall back to sleep, but I was restless, I began tossing and turning a bit, freeing myself from Zach’s arms. “Aaaaagghh,” Zach groaned, “you’re always up so early Dad.”

“Sorry son, get some sleep, I’ll go start breakfast.” I replied.

“Not so fast Dad. I actually meant to wake up before you so I could do this.” Zach grabbed my dick and began stroking. I felt strange knowing Zach was playing with my dick after what I just read, but it felt too good to stop him. “I haven’t got to taste your cum yet, at least not really.”

Zach readjusted us and his head found its way between my legs, “No thrusting this time Dad, let your little boy do all the work.” And with that Zach began to suck me off like he did before. Playing first with my balls, licking his tongue up and down the shaft. Occasionally he would make eye contact with me and his eyes were so innocent, sweet, but also desperate for my cock. ‘I wonder if this is how he looks at coach when he blows him?’ I couldn’t help but think.

I tried to force the image out of my mind, but it was too late. As Zach began to deep throat me I kept picturing him with Coach. Coach was tall, taller than either of us. He had dark brown hair, a dark mustache complimented by a light 5 o’clock shadow, and was absolutely jacked. The man must have spent all his free time in the gym. And according to Zach he had a massive uncut dick.

I thought about all the times Zach and Coach had been in this exact position. After practices or all the team away games where they had a chance to share a hotel room. There were even times when we’d leave Zach home alone while we were out of town, had Zach blown Coach in this very bed? These thoughts should have made me jealous or angry, but instead I just found myself getting more and more turned on.

Zach was still aggressively blowing me and I was moaning with pleasure. I pictured back when it all started when Zach’s soccer coach, 37 at the time - my same age, fucked my freshly 18 year old son under my roof and I moaned even louder. “Yes suck your daddy.” I said to encourage Zach, “my little boy’s mouth feels so good.”

Suddenly I joined coach in my fantasy. In my head I pictured Zach blowing his first daddy, but getting fucked by his real daddy. I was fantasizing about sharing my son with another man and it was making my current blow job that much more intense.

“Fuck Zach suck me faster I’m getting so close.” I said and Zach just moaned while my fantasy continued. I pictured Zach below the both of us and Coach making eye contact with me, winking, and asking “aren’t you glad I trained your son for you?” Before he gripped me by the back of the neck and started kissing me. In my fantasy Coach was sucking my tongue, while Zach sucked his cock, and I filled his right boy pussy. “Next I’m gonna fuck you and I’ll own the whole family.” Coach said to me in my fantasy and that thought brought me over the edge.

“Are you ready Zach? I’m about to cum!

“Please dad, feed me your cum.” Zach tried to say as he gargled my cock.

“Fuck Za— fuck I I” and I shot multiple ropes of cum down my son’s throat and he swallowed every drop. Leaving my cock in his mouth as it began to soften. I went to reach for his cock to return the favor but he pushed my hand away.

“No Daddy, this time was just for you.” Zach said as he licked a few more drops of cum off the top of my dick

We laid like that momentarily. Until Zach looked back up to me and said, “Hey Dad don’t be mad, but I promised Coach I’d visit him today. But I promise I’m not going to do anything with him, I just wanted to say hi real quick. I’m sorry.”

“Don’t be sorry son, in fact, why don’t I come with you? I’ll by him lunch or something.” I replied

“Really Dad? That would mean so much to me!”

“It’s not a problem son, plus it’s the least I could do to thank the man who taught my son to suck cock like that.”

Zach and I both giggled. I didn’t know how I’d make it happen, but I wanted to make my fantasy come true. And knowing my son, he’s already laid the groundwork to make it happen for me.