My wife knows I'm bi, I'm in my 40s, with three sons, a 14yr old, a 12yr old, and a 5yr old, our surprise child. I caught my two older sons in their bed with their younger brother, when I caught then the 14yr old was butt fucking the 5yo as the 5yo was sucking my 12yo boy. After questioning them all making sure they were not forcing their little brother, I went about my day, but could not get what I saw off my mind, because my 14yo boy has a cock almost as big as mine. Later that night my wife went over her girlfriend's house, went in the boys room, they were all in there, and I started talking about what they were doing, as I started rubbing my cock. I asked my 5yo if he liked it, he said yes he likes making their dicks squirt the cum out, and I about came in my pants. Then I remember saying that I squirt a lot of cum out, my 5yo picked right up on it, and I remember him saying Really Dad.. Can I see? My oldest picked up on it all as soon as I started rubbing my cock, I unzip and pull out my cock, as my oldest son was taking off his pants. My 5yo came right over to me taking my cock in his hands, then went right to sucking, and looking down at a 5yo boy sucking my cock, my son or not, it was hot as fuck, and I started filling my son's mouth with cum, he drank it down like a gay porn star. The 5yo is now 10yrs old, my 14yo is now 19, and the middle son s now 17, and my 10yo son is a total slut. A lot of my son's high school friends fuck him, they'll come over to see my oldest son, then sneak into my 10yo son's room, and when I go into his room to fuck him, his butt leaks cum as I'm fucking him.