In the fall, me, my brother and my dad would go camping. I remember I had my first experience with a man the year my aunt Sue came with us. I was 18 at the time, and so wracked with hormones that I would masturbate 3 or more times every day. My brother is only a year younger than me, and our dad is a still-fit former athlete who we look up to a lot.
Anyway, the night we got there it ended up being me and my dad in the tent and Sue and my brother sleeping in our small trailer. When we went to bed, my dad took the sleeping bag and gave me a thin blanket. I tried to fall asleep but found I was way too cold. Shivering, I asked Dad if he could share the sleeping bag, thinking he would unzip it so we could use it as a blanket. Instead he propped himself on his arm and unzipped part of his sleeping bag, indicating that he wanted me to squeeze into the zipped bag with him.
As I slid myself in next to him, I noticed that we were both wearing only our boxers. I could feel his huge pecs and biceps and bulging abs on my ass as I slid down, and his soft, tentacle-like appendage felt like it was at least 6 inches long and quite thick, even when flaccid. He didn't seem to mind the close contact and wrapped his bulging arms under mine. And that's how I first fell asleep that night, my dad pressed against me with the length of his cock gently pressing apart my ass cheeks through his underwear.
I don't know when I woke up, but it was almost pitch black and the forest outside was silent. I felt very hot and could tell that both me an my dad's bodies were covered in sweat. It smelled terrible but somehow it turned me on a little bit. I moved my legs a bit and was shocked to feel the tip of my dad's uncut dick pressing into my sweaty thighs, just where my legs were pressing together below my dick. My dick instantly pricked up and I felt a flood of wooziness spread quickly from my tip throughout my body. I moved my legs again and his dick slid into my thighs more. I felt it pulse a little bit and it grew a little thicker and pressed harder into my legs. Dad made the quietest moan and squeezed me a little, pressing his cock even deeper in. I felt it grow longer and after a few seconds it touched my balls. I felt them squirm with pleasure and retreat further into my tightening scrotum.