"Well that's an exciting prospect for some add to our family fuck fest this summer." Dad said, he had said how excited he was to have a new asshole to plough. Mum and I had raised the idea of joining his incestuous family for a sordid summer of love as dinner finished.
"So you are ok with him fully joining in with our fun times then, my darling?" Mum asked him.
"Absolutely, to fuck and to be fucked, jeez he is a lucky young man indeed, must be a dream summer for a horny twenty year old virgin. With all the sex and exercise he should lose the take out weight he gained. But, jeez, it's surely every filthy minded young minds fantasy!" We laughed.
"What about you babe?" I asked my sister, who looked a bit more pensive.
"I haven't met Tom that much, he always seemed nice, good looking, is he really wanting, needing to join in with us?" She replied.
"He says he hasn't, well, he says he is still a virgin, he's got a bit self conscious about the weight he has put on, eating take out food and student rubbish. Yeah, he says so, it's pretty much his idea isn't it mum?" I turned to mum.
"Um, yes, he couldn't help but notice how much happier sweetie was now and well, it came out we were all having sex together and, well, he just wanted in on it. He is a grown young man now so if he wants to, why not?" Mum hadn't fully shared her role as a very naughty, very horny, very naked selfie, GILF.
"Ok, I guess so, I mean it's his choice to come here, does he know?" Babe looked at me.
"Not it's a go, no, so we will tell him tomorrow, he is very keen to say the least but I will tell him he has to finish his term to get all the credits he can, so it will be a couple of weeks before he can get here. Plenty of time if he decides to change his mind." With that it was pretty much resolved, Tom would be joining our perverted incestuous debauchery, unless he changed his mind. Which I doubted, heck the hard part, excuse the pun, would be making him stay for the last two weeks and get all his credits.
We chatted over tomorrow's property viewings over drinks and then we all went to shower off the sun cream. Back in our willing sibling submission we were told to kneel and wash dad down whilst my sister washed her mother. It was always a thrill to run my hands over dads naked body, especially with the warm water and soap soothing the way. I started with a slow, sensual teasing massage of his tumescent cock and heavy balls, glancing at babe as she lovingly caressed our mothers glorious gash.
Dads cock hardened fully as I lightly stroked him, and course I was hard myself, wondering if I would be allowed to finish him in my mouth or, even better, ass. Adding to the usual thrill was the delightfully delinquent thought I would soon be caressing and fondling my son and then have him cum in me, an ultimate expression of a sons desire for his father.
"Don't make us cum. Not yet. Move up!" Mum murmured, making us both stop short of pleasuring them to orgasm. My sister and I stood and massaged and lathered our parents chests, necks and faces. I quite deliberately stood so my cock rubbed against dads and I gently stroked us both as we stood looking lovingly at each other. I noticed mums hands tickling her clit and labia as babe slowly, sensually, soapily massaged her tits. Then win a side glance and nod we together closed in to suck first one nipple, then the other which had them both murmuring with the exquisite torment.
We finished by washing down their backs and rimming our parents assholes, we each breathed in deeply their anal musk, stronger just before we washed and licked them clean. I reached between dads locks to cup his balls as I did, delighting in the subtle, sensual ways his body responded to my loving touch, telling me, or so I hoped, he would soon bless me with a breeding.
"How do we make them finish us my darling?" Mum asked as my sister and I were still nuzzling our parents assholes.
"Oh my angel, I have to fuck my son." Dad said and got an extra anal kiss and ball squeeze from me as a silent thank you. It would, i thought with an extra erotic thrill, be the first time babe would see dad sodomize his son.
"Of course darling, well we can all have some fun I reckon, well my children, wash each other down and then come in to finish us for the night." Mum ordered, as they stepped out the shower together and started to dry each other down. My sister and I stood up, hugged and kissed as we both trembled with our unfulfilled sexual desire. My fingers slid down to explore and tease my sisters labia as her fingers wrapped around my hard cock I wanted to cum so much I had to pull her off to stop myself.
"I can't cum yet my beloved." I said and she nodded, looking so fucking beautiful it was untrue. Jeez, I would never stop enjoying seeing and even better stroking and fondling my gorgeous sister. Tom would be a lucky, lucky boy indeed to get his hands on and then cock and cum in his beautiful, hot aunt.
"I can though sweetie, I can my love." She kissed me again, moving her hand from my cock to push my hand harder into her vulva.
"So lovely to see your two getting on so well, but please do hurry up children, you can't keep your parents waiting for their pleasure." Mum stood in the open doorway watching our sensual shower.
"Oh mum!" Babe groaned with disappointment.