Here's my story, it isn't nearly as interesting as what I've read here, but here it goes.
My dad always got me excited, he's a big man, unlike me, I'm skinny (my mother's family heritage I suppose). He used to be pretty muscular, but now he has a bit of a tummy. Nevertheless, he's really masculine and tall. Taller than me. I remember as a child that I took showers with him when we were on holiday. I was amazed at the size of his penis, it was large and thick and it had dark hair all around it. To me it looked huge, because I was like 5 years old and his penis was at eye level. I sometimes pulled on it while we were showering, it didn't have any sexual meaning, I just thought it was funny. And so did my dad, he never got an erection or something.
When I hit puberty I found out I was gay, but it wasn't until I turned 19 that I came out for it. We had only one very small bathroom in our house and my dad and I shared it sometimes. He had to work early and I had to go to school early. So he was standing in the shower and I was brushing my teeth or doing my hair. There was a non-transparent shower curtain, so I never really saw him naked. But the thought of him standing naked on the other side of the curtain arroused me. I must have been 17 or 18 when it happened. He was showering and I was standing in front of the sink. Dad had run out of showergel, so he asked me if I could get another bottle from the drawer in the bedroom. When I returned he opened the shower curtain completely and I gave him the showergel. I glanced at his penis, he had a semi-hardon. It was hanging down, but you could tell it wasn't flaccid. Before I knew it he closed the curtain again, but I was horny as hell. I jacked off many times thinking of that image.
When I was about 20 I remember being home alone, watching tv in the living room. My dad just came home from work and went upstairs to change his clothes. At that moment the phone rang, it was one of his colleagues. So I yelled upstairs that he should come to the phone. He came down in only his tight briefs. He had a raging boner! It must have been really hard, his dick pushed the band of his briefs a little outward. I tried not to stare at it constantly, but it was there right in front of my face. I had also have a boner in my pants, watching him stand there with his massive erection. I have a 7" dick, his looked a little bit bigger than mine, but the proportions seemed to be the same. After he hung up the phone, he went back upstairs to change.
Two years ago we all went on a holiday to Egypt. My parents, my brother and his wife and my boyfriend and me. One night, we decided to go party in the city. My dad is quite a party animal so he joined us. My mother and my boyfriend were tired so they stayed at the hotel. We were getting quite drunk, eventually my brother and his wife took a cab and returned to the hotel while my dad and I kept on partying.
At the end of the night we took a cab home, the cab driver was making some sexual jokes and my father (drunk as he was) replied that he was the best pussy licker in the world. I laughed, but I was also a bit embarrased. We were both sitting in the back of the car, suddenly he placed his hand on my upper leg and began to gently stroke it. An electric pulse shot through my spine, that gentle touch by his big hand felt so hot! He kept on stroking my leg while he was chatting with the cab driver, eventually I placed my hand on his bare upper leg (he was wearing shorts) and returned the favor. When I looked down I saw that my dad had an erection. Combined with the alcohol, my head felt light and I slowly and very carefully slid my hand higher on his leg, so that eventually I very lightly touched his balls (through his shorts) with my pinky everytime I stroked him. My dad stopped stroking my leg, instead he began squeezing it lightly. Maybe I turned him on as well? I don't know.
Anyway, before I knew it we reached our hotel and we had to get out of the car. When I opened the door and got out, I let the full length of his penis slide through my hand, it felt magical. I placed my arm around his shoulder and together we stumbled to our rooms who were right next to each other. At the door my dad hugged me, he pressed me tight against him. He had one hand around my upper body, the other firmly on one of my butt cheecks. I felt his hard dick press against mine. He kissed me on my cheek and entered his room. I entered mine, flabbergasted about what just happened. I already knew my father was a hugger-type, but it went a step further when he got drunk. Unfortunately, nothing more happened that holiday and I don't know if he even remembered it the day after haha.