First time sucking penis

This is a true story about something that happened to me during the summer before going off to college. I was 18 and a little smaller than my friends and my cousins that were the same age. My best friend and his parents would be at our house almost every weekend for BBQs or just to hang out with me and my parents in our pool. My friend's father was named Mike and he was 42 years old, the same age as my father, but he was much taller, more muscular, and he had the biggest bulge in everything he wore. He was definitely the first man I'd ever seen that made me hard just by looking at him. He was so good looking and had a very hard and muscular body.
I thought about him when I was in my bed or my shower jacking off. I always thought I was gay, or at least bi, but I'd never acted on my feelings with anyone yet. When he was at our house and he had on his swimming trunks that showed off his tight body and his huge bulge, I would try my best to get a good look at his cock in his shorts. There were a few times I'd be staring at him and he'd catch my eyes on his cock as if I was in a trance or something. I was so embarrassed and nervous when he caught me that I would usually just walk away and go to my room or get my bike out and take off for a long ride. During the summer when I was 18, his wife and his son Jason, (who was my best friend), had to go visit his grandparents before he went to college. That meant Mike was going to be home by himself for a week, since he had been layed off from his job. My father and I had plans to go on a camping trip. My father told me he was going to ask Mike if he wanted to go with us since he really had nothing better to do that week. When he said yes, I was so excited and happy to have som . My father packed the tent and I got someone else with me and my father because I didn't think it'd be much fun with just my father and me. My father got the tent and sleeping bags together and I got our food and clothes together for us. When we started setting up our tents, my father realized he packed the wrong tent. He packed the small one person tent.
My father said he'd go into town and buy a new one for us, but then decided that since Mike had a 2 person tent that he could have ours and we could sleep in his tent. Since my father snored very loud, I asked Mike if I could sleep with him in his tent. He said no problem, as long as my father was ok with it. My father said that was fine. That day we sat down by the lake, they fished and I took a paddle boat out for a while.
Later we had a fire going, grilled some burgers and ate. Them we sat around the fire. They were drinking some beers. I could tell my father was getting drunk. Then my father got up and said "I'm going to bed", so Mike and I just stayed by the fire and talked for awhile.
He was sitting across from me, his shirt off, wearing a pair of loose fitting shorts and a pair of tennis shoes.
He was about 6′5″, 240 lbs of muscle and he wasn't fat at all, he was like a wrestler from television, a super solid and height and weight proportionate. He had short dark hair, a dark complexion, big muscled arms, broad shoulders, big muscular chest, with a dark closely trimmed beard and mustache. I was in awe of the thickness of his wrists. I'd always thought older and masculine guys were so hot, kind of like the Daddy type I guess.
He was definitely that kind of man. I was taking the opportunity to see if I'd get a better look at his body, huge bulge, or even better yet his cock. As I looked up from his crotch, I instantly felt scared, nervous, and a little bit excited when I realized he was sitting there watching and even letting me continue to stare at his crotch. He smiled and said , "would you grab me another beer while I go take a piss". When he came back to the fire to dry he said, "I dribbled a little piss on my shorts". I laughed and smiled at him. When he sat in the chair he put one foot on another chair and his legs were apart just enough that I could see his dick peeking out of his baggy shorts.
I went to take a piss, when I got back he had rearranged himself so I had a better view of his cock.
I made sure it was very obvious that I was staring at his cock.
I wanted him to know exactly what I wanted.
He smiled and said, "do you like looking at my cock"?
I laughed a nervous laugh, but I was so anxious, ready, and willing for my first cock. 
I said, "I'm sorry to keep looking, please don't tell my father". He said he'd never say a word, but we'd have to keep it between the two of us.  
I said, "I definitely would keep it our secret". After a little more talking and him letting me know he had an idea that I might be gay, bi, or just a bit confused and curious about my own sexuallity. Then he said, "let's walk down by the lake". So we walked to the lake, he sat on an old tree stump and took his cock out of his shorts and let it lay on his leg. He wasn't hard or even touching it. I said, "wow, you have a nice cock. He said, "do you want to see it closer and maybe how good it feels in your hand".
I said, "sure", I moved closer to him to get a better look, I said to him, can I touch it with my hand"?
He said "of course you can".
I was watching my hand start to go up and down, then he told me, "get on your knees if you want a better look at it".
I got down there, he looked at me and said, "have you ever been with a man before. I said, "no, but I've thought about it". 
He said it was normal for a boy my age to think about what it's like. He said he thought about it when he was younger and he experimented with a friend of his. 
I said, "what did you guys do", he said," I let my friend suck my cock and we both liked it". 
He said," Do you want to try and see if you like it too"? I said, "yes I will try it". 
His cock wasn't very hard yet, so he told me to lick the head and then slowly slide my tongue up and down the shaft. When I started licking it he was looking at me. He had a huge smile on his face. He said, "open your mouth and stick out your tongue". He layed the head of his cock on my tongue and told me to look up at him. When I looked up he said, "You're a very good boy". He told me he'd take his time and teach me how to make a real man feel good. He asked if I was okay with that, I said, "yes".
He told me to "say yes Sir".
He said, "see how much of my cock you can get down your throat". He put his hand on my head and pushed my head down on his cock until I started to pull away. He took his cock out of my mouth and said, "you're so close to getting it all in. I said, "I don't think I can take it all".
He said I needed more practice and he was going to make sure I got all practice I needed. He told me he loves to have his cock sucked all the time and I could be his little cocksucker if I wanted. He grabbed my head again and said, "suck my cock boy".
He started moaning and telling me how good it felt. He was moving his hips back and forth and his hand was still on my head. I was really enjoying myself, he could tell I was, he said," You're going to be a great little cocksucker". 
I sucked and sucked for a long time, he stood up, he started moaning more and louder.  He said," you're such a good boy". He asked if I was ready to take it all down to his balls, I shook my head yes with his cock still in my mouth, he pulled my head off his cock and said, "I saw you shake your head yes". He said, "is that what you're supposed to say"?  I just looked at him for a moment, then realized what he meant. I looked at him and said, "Yes Sir"!  When I said Yes Sir, he pushed me back onto his cock and told me it was time for me to swallow Daddy's big fat cock like I'm supposed to. He put both hands on my head and slowly pushed my head down until I had tears running down my face, he didn't care and he told me to take a deep breath and when I did he shoved his cock in my throat until my lips were on his big balls. He held me down there and told me to lick his balls. I couldn't believe I was able to do it, but I did, it was a great feeling. He pulled me back to the head of his cock and then pushed me all the way down to his balls again. He kept doing it and telling me to look up at him. He told me that he was ready to shoot. He said he wanted me to taste his cum. If I couldn't swallow it I could spit it out this time, but he wants to see his boy swallow it all.  He started moaning and then his legs buckled and I felt his cock start shooting his cum in my mouth and I wanted to be his good boy, so I just relaxed my throat and swallowed his cum. It was so warm and tasted very good. He was looking at me with the biggest smile on his face. I knew right then I had made him very happy. He pulled his cock from my mouth and he said to me, " lick the head of my cock and make sure to get every drop of Daddy's cum". I said, "Yes Sir", he smiled at me, I licked him until I knew I had nothing left to get. He asked if I liked his cock and if I liked the way his cum tasted.  I smiled and said, "oh Yes Sir I loved your cock and your cum too Sir". He said that he wanted me to call him Daddy when we were together, because I was his good boy now. When we got back to the campsite my dad was walking to the restroom. He asked what we were doing, I said we walked to the lake to see what time they opened in the morning so we c