Chapter One: Christmas Morning
It had long been a tradition in the Carpenter household that on Christmas morning the children made breakfast for their parents and took it upstairs for them to eat in bed. This Christmas started no differently, but by Christmas Day evening their lives had changed dramatically and forever.
Our family was a close knit one; Mum and Dad, Grandad and Gran plus my twin sister Angie and me. Unfortunately we had no close siblings to interact with so we consequently spent a lot of time together. Dad was a Senior University Lecturer in Biology at Brighton, Mum was a Solicitor specialising in divorce matters, Grandad had his own large Financial Company while our Gran was the local Director of a Homeless Charity.
Breakfast by convention consisted of two lightly boiled eggs each, together with two slices of buttered bread cut into "soldiers" and a cup of tea; definitely not "cordon bleu". So I filled the saucepan with water and set about boiling the four eggs for his parents, whilst my twin sister, Angela, boiled the kettle for the tea and buttered and cut the slices of bread. She filled the tea-pot with the requisite number of teaspoons of tea, followed by the boiling water and allowed it to brew as we waited for the boiling water to cook the eggs to right consistency; hard white with runny yellow yolks.
"I wonder what Mum and Dad have got us for Christmas this year." Angela mused out loud. "Did they give any hints to you?" She smiled at me with her eyes twinkling. She was five minutes older than me so treated me with a condescension that befitted her status. I on the other hand found her to be totally sexy and desirable, slightly more so than our mother but only marginally. Both the women in our house were, to my eyes, off the scale of sexiness; I'd been masturbating for several years now occasionally catching sight of naked flesh that they were wont to flash although not frequently enough for my fervid heated imagination. Angie's tits were almost as big as my Mum's but seemed to be slightly firmer, Mum's hung a little more. Their asses were nearly identical so far as I could tell without a more manual assessment.
"Nothing; they've been very cagey this year; most unusual." I turned the gas hob off and poured the water carefully into the sink; using a slotted spoon to lift the eggs out and placed them into the four egg cups already on the breakfast tray. Angela put the plate of "soldiers on the tray and poured out two cups of hot tea and added a splash of milk to each. She leaned across and kissed me softly on the lips, "Happy Christmas, Mark. Let's go and wake the old folks up." She put the cups and saucers on a separate tray and we proceeded to carefully walk upstairs; my eyes glued to her nicely rounded ass bouncing round right at eye level in front of me. The house was spacious and there were actually five bedrooms on the first floor. Our parents had the master with an en-suite, whilst Angela and I had two rooms with a "jack & jill" bathroom; the final two bedrooms also shared a bathroom and were for visiting family and friends or colleagues of Mum and Dad.
I managed to hold my tray in one hand as I opened our parents' bedroom door. "Happy Christmas!" we both chorused, and then stopped, surprised as our parents were locked in a passionate embrace. Angela and I looked at each other and grinned; the old folks were obviously enjoying their Christmas day already. We coughed loudly but politely causing our parents to break apart, looking very hot and flustered. "We can always come back later." Angela laughed. "Looks like breakfast might be a bit of a let-down at the moment. Happy Christmas!"
Mum and Dad smiled and lay back against the headboard of their massive bed. "Sorry about that," Dad said, "we were just having our normal good morning kiss." I looked at my parents, Dad was bare chested and Mum was wearing a very sheer white nightie that showed more of her large breasts than it covered. I noticed that Angie was gazing intently at Dad's body. "Some kiss!" She whispered.
Dad coughed and smiled at us, "Why don't you join us this morning? We have something we need to talk to you both about before we give you your present." Mum patted the bed beside her and smiled, "Mark, darling, come and sit next to Mummy; Angie can cuddle up to her Dad." She lifted the duvet to indicate that we should get under the bedclothes with them. I caught a quick flash of naked flesh as she held the duvet cover up and my hands shook slightly as I laid the tray with the eggs on her lap. Angie put her tray with the tea on Dad's lap and then we both slipped into bed beside our parents.
Angie and I waited patiently as our parents tucked into their traditional Christmas breakfast; I was really happy to feel the warmth of Mum's practically naked body radiating next to me, whilst my sister was leaning her head against our father's naked chest.
Finally they put their empty cups down. "Can you put the trays on the floor please, darlings?" Mum asked us, and we picked them up and leaned over and placed them on the carpet each side of the bed. I hastily returned to my position, closer to Mum's body this time so that my legs were touching her bare legs. "Hmm, that feels nice darling." Mum slipped her hand under the duvet and patted my thighs. I blushed as I felt her bare forearm press against my suddenly hard erection. "Sorry Mum," I stammered.
"Don't be sorry baby; I'm flattered that you could be attracted to your old Mum." She continued to press gently against my throbbing cock. "It actually makes what your Dad and I have to tell you much easier." She looked at Dad. "Ready to tell them darling?"
Dad smiled and manoeuvred his arm around Angie's shoulders. She wriggled closer to him and put her hand on his chest, stroking the hairs that covered his upper body. "Well, your mother and I have a secret that we need to talk to you both about. It's a family secret that involves you as well as us and your grandparents."
"Sounds very intriguing." I looked across at my sister as Mum continued to press her arm against my even harder prick. "How does it include Angie and me?"
"All in good time son." Dad smiled down at my sister. "It all starts with your grandparents some thirty odd years ago. You may have wondered why you both only had one set of grandparents."
"It does seem strange daddy," Angie snuggled closer to Dad, her head now lying against his chest as her hand disappeared under the duvet. "You never told us whether they were your parents or Mummy's."
"Both actually," Mum answered. "Your grandparents are my mother and father and your Dad's mother and father."
"How could that be?" I thought out loud. "The only way that could happen would be if you and Dad..." My voice tailed away as realisation dawned.
