It was only at the last minute that I learned my work was going to have me passing through the town where my former college roommate and old friend lives with his son Zac, who I had somehow never had the chance to meet. Reece encouraged me to arrange for an 18 hour layover so I could spend the night. Unfortunately, a previously scheduled holiday party would limit the time we could spend together, but we would make the most of the time we had. In college, Reece and I were randomly thrown together as roommates, but we discovered that we had a lot in common. We almost became lovers, but no matter what we tried, Reece couldn’t accommodate my size. We settled for three-ways and developed a discrete, but infamous reputation for bringing conquests back to our room to spit-roast them. Reece discovered through experimentation that he was both versatile and bisexual, while I’m strictly gay and strictly a top. His bisexuality eventually led him to marry his high school best friend. He wanted kids, which was impossible for two men, back then. So we split up when we graduated, and he got married. It was only a matter of time before he started looking for dick and his wife found out. They tried to stay friends, but that didn’t work. She kept Zac away from him for years, until she found herself a new man and kicked Zac out.Reece was thrilled to have his son back. Once he got over the guilt, he was even more thrilled when they started getting sexual. Even though we no longer live close, we talk on the phone often and tell each other about everything, including our sex lives. When Reece started fucking his son, I was the only one he told. Even so, I had no expectation that he would share his son with me, although, when I met Zac, I could see how Reece couldn’t keep his hands off him.Then Reece whispered to me to finish my cocktail and discretely come to the back bedroom, the last door on the right. When I got there, I was both surprised and delighted to find both Reece and his son. I was now more glad than ever for my layover. There was a pile of pillows, all too conveniently on the bed. Reece said he needed to store them for the party. Accidental or pre-planned, they were the perfect height for spit-roasting a cute boy. This was like old times, but it was about to get even better.I’ve gotten adventurous over the years. Actually, some might call it kinky or downright perverse. Everybody has limits, myself included. Aside from “men,” “legal,” and “I’m on top,” my list is very short. We started out with Zac ass up on that pile of pillows. The perfect height for taking dick. I sent Reece around to muffle Zac with his cock, while I pulled his white briefs down to reveal a smooth, young, pale ass. No tan line. Just perfect. I started exploring his hole with my fingers.I enjoy eating ass, but I was rock hard in my pants and ready to fuck, if he could take me. Reece is not small himself, and Zac was supposed to have had plenty of practice. I was going to see if it was true. Sure enough, Zac was tight as a vice grip. He had never taken a cock my size. That was why I didn’t want him to be too relaxed. He took it, though, not without some moans and whimpers, music to my ears.Zac's ass was everything I could ask for, and his dad was clearly getting off on watching his son get fucked by another man for the first time. Like I said, though, I’m a raunchy fucker. It occurred to me that Reece is versatile. And Zac had not lost his top cherry yet. It was about time for me to help him with that by teaching him to fuck his own father. Reece was up for it, like I figured he would be. He’s still not getting as much dick as he would like.Reece laid down on the bed, and I guided Zac between his legs and helped him get his hard, boy cock into his dad’s hole. Then I got behind him and resumed fucking. I was pushing in deep and hard, pushing him balls deep into his dad’s hole. You’ve got to teach a boy right, from the get-go. He picked it up quickly. I can tell he’ll be a good top one day, when his cock grows out. Young guys can’t hold out long, though, especially with their first fuck. His dick may have some growing to do, but his balls filled his dad up good. There is nothing like feeling another man’s orgasm from the inside to push me over the edge. I planted my own swimmers deep in his tight young hole. I’m too tempted to say my flight got delayed and reschedule my meeting.