Editor's note: this story contains scenes of incest or incest content.
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For the remainder of the weekend we stayed naked or in our underwear. The spot was very secluded and no one passed by so we decided not to get dressed which meant we could quickly get to each others cock when we felt the urge. We zipped our sleeping bags together - made out and slept naked spooning each other, playing with our hard cocks. I lost count of how many times we both blew our loads - it was the most sexed-up weekend I had had for many months, but it had to come to an end. A couple of times on the drive home Billy would reach over and grab my crotch, making my cock hard so he could fondle me while I drove.
Life went back to normal with me going to work at 8am and Billy staying home looking for a job. He would text me during the day saying how horny he was and that he needed to cum, often sending me pics of his lovely hard cock. I would race home after work to find him naked and hard waiting for me. I would strip off as soon as I got behind closed doors. Some days I would wear tight skimpy briefs that had trouble containing my soft cock so when I got hard they didn't stand a chance. Billy loved to see my hard cock sticking out of the top of my briefs or hanging out the side. He would be on his knees in seconds, rip my briefs off and sink my cock deep in his mouth and throat.
One day he produced a small brown bottle and held it under each nostril and took deep sniffs. He'd then go crazy for my cock, slobbering over the hard shaft and knob head, while massaging the cum building up in my balls. I asked if I could try the bottle - poppers he called them. I did as Billy did and suddenly my head spun and my cock felt like it was going to explode with what Billy was doing. One more sniff and that was it - my spunk ran up my shaft and burst from my piss slit. It was the longest orgasm and biggest cum load I had blown for ages. Billy swallowed it all down not missing a drop.
The poppers made me so fucking horny, I had to get my mouth around Billy's cock. I opened my mouth wide and he slipped his cock in till it touched the back of my throat. My tongue caressed the shaft as my hands reached to pull on his ass cheeks and force more cock into my mouth. His cock filled my mouth and tasted fantastic, I just couldn't suck it enough. All too soon Billy's sweet cum was shooting into my mouth and down my throat. I sucked for all I was worth, not wanting to miss any of that sticky, sweet boy juice.
"Fucking hell that was good" I said after we hard both come down from our respective orgasm. "Those poppers are brilliant."
"Even better when you're fucking or being fucked dad," Billy said. He was still determined to have me fuck him, and him fuck me. And to be honest I had started to want it too. I wanted to feel my cock buried deep inside my son's arse, and maybe feel his huge cock balls deep in me. A few hours later it happened.
After dinner was done and cleared away, Billy announced he was going for a shower. "I want to get ready for you dad - you're going to shove your cock up my arse and fuck me tonight." I watched his sweet firm arse cheeks as he ran up the stairs to the bathroom. My cock jumped to life as I thought about fucking him. I went to my bedroom and lay on the bed, slowly playing with my hard cock as I listened to him showering.
He was in the bathroom for what seemed like ages and then I heard the water turn off. A few minutes later he was walking into my bedroom carrying a towel, a bottle of lube and the poppers. His brown hair was still damp and spiky, his long lithe body still a little damp, his long cock and balls bouncing as he walked up to the bed. Fuck he was a beautiful boy. I just stared at him while slowly playing with my cock. Pre cum had gathered at my piss slit and was running down my knob head.