I had never even suspected my uncle of being vaguely bisexual before this...
This happened a couple of months ago during my summer break. My uncle happened to be passing through our town, so my dad suggested that he come and spend a night or two at our house on the way.
Now my uncle is the youngest child of the grandparents on my father's side of the family. He's only 30, so we've always got on well.
He spends most of his time drifting around in life, and he has never really settled down. He just goes from one job to the next.
At about One am on the first night he was sleeping over, I heard a weird noise coming from the lounge. I knew it wouldn't be my parents, they would be asleep by now, and I don't have any siblings, so I guessed it must be my uncle.
I thought that I better go check just in case. I tiptoed down the passage and pushed open the lounge door. I must have made a noise because my uncle looked at me. He was sitting on the couch jerking off, I saw porn playing on the TV, he must have bought a DVD with him.
I didn't know what to do, I just stood frozen. My uncle quickly whipped his dick back into his pants, walked towards me, quickly closed the door and guided me to the couch.
"I'm sorry you had to see that," he said, "I assume by now you know that a man has got certain needs and I obviously didn't expect anyone to be awake."
I felt so awkward, and didn't know how to respond. Suddenly I just felt my dick starting to grow in my pants. It quickly formed a tent in my boxers.
My uncle looked down at it and it chuckled. "You ever seen someone jerk off in front of you before?"
I whispered "No" awkwardly. He just smiled, "Well when I was in school we used to jerk off with each other all the time. It's not a big deal."
I just laughed awkwardly. My uncle laughed too, "Okay then, I've got a movie to finish," he nodded his head towards the TV, "So if you want to go now's your chance."
He sat down on the couch, pulled down his pants and his semi-hard dick flopped out. I should just say that my uncle has a huge dick. It must be 8 inches at least and I had never seen a bigger one in person ever before. That combined with the fact that my uncle is a good-looking guy and that I was staring at him on the couch jerking off his massive dick, was making me rock hard.
I rubbed my dick through my boxers. He noticed my hand move and looked over. "Don't be shy," he said. I pulled my boxers off and my dick sprang out. I have a 6 inch rather fat cock and I'm also uncut. "I wish I had a bigger dick," I said. My uncle just said something along the lines of size really doesn't matter if you know how to do foreplay.
We sat there for a couple of minutes, silently jerking off. Then my uncle surprised me and said, "I'm pretty close, would you like to try your hand at jerking another guy off? No pun intended," he laughed, "I'll finish you off if you want to."
I almost jumped over the couch next to him. "Just go slow" he said as he closed his eyes and I put my fist around his throbbing dick. After a minute he was really throbbing. He took my free hand, formed a fist and then pulled a finger free as if I was pointing at something, he shoved it in his mouth and then pushed it down. He held my finger over his butthole and made circling motions. Not three seconds after this, his whole body convulsed and he shot huge ropes of cum all over his chest.
He sighed. "Now it's your turn" He got down on his knees in front of me, the thick ropes of sperm stuck in his chest hair, he rubbed his hand across his chest. Then reached over to my dick with his hand full of his cum. It was the best feeling in the world, I closed my eyes and humped his fist.
Suddenly I felt his thumb go into my butthole, with this unexpected surprise, my load shot all over me in 5 thick ropes of cum.
I looked at him and he smiled, "Little trick I learnt from an ex-girlfriend. Anyway we better have a shower or a swim to clean off."
He walked out the lounge presumably to the pool. When I walked out I found him skinny-dipping in the pool. He said the water was nice,
Later that night he showed me how much fun skinny-dipping can be.
I'm really excited at the thoughts of him possibly coming back to our house for Christmas, maybe we can have more fun times.