Dawn had broken as my father Tom, my son Robert and I, their son and father Ian, stood side-by-side, naked and proud with our hard dicks throbbing in our hands as we continued with Robert's celebration party for passing his exams and getting into medical school. A rather unusual way to celebrate, it had to be said, but then we were no ordinary family.
An official party had been held for Robert between 7 p.m. and midnight the previous evening but once all the invited guests had drifted away, the unofficial party, for family members only, began in the room at my parents' house that was specifically set aside for activities that only we knew about and where we had been engaged in those activities for almost six hours. We would soon be too tired to continue but until then we were determined to carry on as my father, son and I stood there naked and fully aroused in front of my mother Fiona and my sister Karen, also as naked as the days they were born.
"For fuck's sake, mom," Karen said, her eyes on stalks, "just look at those big hard dicks and those beautiful balls. They should all be Grade 1 Listed Structures."
"Yes," Fiona our mother replied, "and so should their asses and I think its time we gave those bums some female attention."
"Oh yeah," replied Karen, "turn round, boys, and let's see those hot tight butts of yours."
We dutifully obeyed to display three generations of masculine nude smooth buttocks and long cracks to the ladies of the family, directly in front of their eyes and feeling just as proud and privileged as we did when we showed them our aroused pricks. I stood between my father and my son and glanced over my shoulder to see that my mother and sister were now unhooking two of the strapons from the walls of the room and which, so far, had not been used in our latest sex party.
My mother and sister were both experienced strapon fuckers and I knew without being told what was about to happen. My father, having recently fucked his daughter, was once again happy to watch and resume masturbating as my son and I bent over, pointing our nude asses to the ladies as they fixed the strapons around their midriffs.
"This is gonna be great, son," I said to Robert, reaching out with my right hand or a quick touch up of his alluring naked backside before the action started, "ain't nobody else in this world can strap-on fuck like your grandmother and aunt."
"I know that, dad," my son replied, "I'm really looking forward to this."
When Robert first became old enough and therefore a consenting adult and eligible to join our family sex club, I had had to tell him to spread his cheeks to receive a good strapon fucking but there was no need now, he automatically reached round with his hands and parted his buttocks wide, exposing his spectacular tight ring while, alongside him, I did the same. Neither of us felt any embarrassment showing off our twitching assholes as we waited with growing anticipation for my mother and sister to choose which one of us they wanted to fuck first. While of course my father moved round to get a good look as he continued masturbating. He'd been wanking so much since the unofficial celebration party started, it was a miracle he hadn't cum several times by now.
With their strapons now firmly affixed, the two female family sex club members moved in, eager to start and not keep my son and I waiting any longer.
"You fuck Robert's ass and I'll fuck Ian's," my mother said to my sister as they lined up behind our respective bent over spread cheeks assholes.
"Too fucking right, mom," my sister said as they placed their strapons at our asshole entrances while our father leaned in for a closer look. My mother and sister didn't waste another second as, with jackhammer speed, the artificial pricks reached their targets and began to slice their way between our butt cracks and Robert and I moved across to kiss, sending our father and son tongues deep into each other's mouths. Alongside us, his face a mixture of pride and pleasure, my father upped the pace of his wanking as he watched his son and grandson getting strapon fucked doggy style by his wife and daughter. The rest of the world had ceased to exist as we descended unashamedly into the depths of depravity and debauchery as the first light of dawn started to find its way through the one and only window high up on the wall of the room.
2.
"This is too fucking much," my son Robert said as his aunt's strap-on pistoned his asshole as he rocked back and forth on his sturdy athletic legs while my mother's strapon was, thanks to her expertise, plundering her son's asshole with all the expertise at her disposal. I could feel the excitement resonating from the others as, after ten minutes, mom and Karen exchanged glances and Robert and I felt the strapons fall from our holes as the ladies changed positions. Now my sister's strapon was fucking her brother's ass while my mother's strapon was now fucking her grandson's ass, my son and I pushing our asses back to meet every single thrust.
My mother and sister exerted as much pressure as they could to give us all the maximum pleasure from the penetrations. Dad, who had seemed to be masturbating ceaselessly all evening, suddenly stood in front of me and I knew what he wanted and I duly obliged by taking his 68 years old paternal dick into my 43 years old offspring mouth.
"That's it, son, take it all the way down," dad said as I began the sucking but having to suppress a giggle. At 43 years old if I didn't know how to suck cock now, I never would. To my father, and to my mother too, no doubt, I was still "their little boy", not something I would ever apply to my own son whose naked ass was bent over next to me at that very minute, proving beyond doubt that he was and is very much a man.
Now I was being spit-roasted by my 45 years old sister and father while my 66 years old mother continued to strapon fuck my 22 years old son. After 12 hours of almost non-stop sex, it was a miracle where we got all our energy from, especially my parents, but I put it all down to the fact we were experienced sexualists who loved sharing our nude bodies with each other and we all possessed tons of enthusiasm for incestuous sex, guaranteed to provide maximum enjoyment even though we were all aware now that we would have to start winding down soon as tiredness overcame us.
Dad moved across to have his dick sucked by my son and now Robert was being spit-roasted by his grandfather and grandmother. My sister finally removed her strapon from my ass as I ceased to spread my cheeks, letting each buttock come together again as I resumed a standing position as my parents and son broke their spit-roasting and Robert resumed standing too. Our father and son granite-like pricks still stood out hard for all to see and I was very proud that my son had inherited his father's and grandfather's ability to stay fully erect for hours on end.
Both ladies went to their backs on the bed as my son and I exchanged knowing looks.
