Heading towards the stairs after ejaculating not once but twice on my grandmother's body I am feeling sharpened. My thinking is unfettered, my mind is clear. I slow my thoughts as I pad down the stairs towards the first floor and the kitchen, sinking into deep self analysis. Is this wrong? Here I am, years later, walking nude down my grandmother's stairs. My flaccid penis is leaking semen on the steps my grandmother used to spend sunday mornings sweeping and cleaning. When I began this journey I had no idea where it would end, and after coming so far past the point of no return I feel a frightening sense of freedom, like the first man to step beyond the boundaries of the known world. I'm on a tightrope with no net, running over a deep and beautiful chasm and loving every minute.
The sound of grandmother beginning to snore reaches my ears from the room upstairs as I reach the bottom. I smile, picturing my grandmother in my mind. Her body is forever altered now, her daily regimen of vitamins, growth hormones, muscle relaxers, and estrogen ensures she stays exactly how I need her to be; full, plump and bulging in all the right places. Practice makes perfect and I have refined my earlier clumsy attempts at manipulating her body chemistry and can easily achieve my desired results. Full, cartoon-like breasts naturally flop to the sides covering her armpits as she lies and propping up her arms.
Her belly is body wide and round, resembling the belly of a woman in the final months of a long and complicated pregnancy. Her body hair was a problem; I did not know the proper dosage of biotin to keep feeding her at first. Now I have it exactly, a gross overdose by anyone else's standards but absolutely perfect for my beautiful grandmother. The hair in her pubic region is thick and lush, gone is the grey stringy hair that my grandmother was gifted with by nature. Some combination of the chemicals I include in her daily meals has reversed the graying cycle; her hair is a rich dark brown. She sleeps the sleep of the truly innocent, with all her needs cared for by her loving... What? What am I to her...?
The night she woke up and called me baby for the first time was a milestone that changed things. The first time she kissed me back was another; I stayed erect for the entire day after that one. The first time she allowed me to accidentally brush my swollen erect penis past her face without recoiling in mock disgust... And the first time she wrapped her warm mouth around my shaft and began to apply suction, moving her head slowly forward fitting my thick cock deeper into her mouth. There have been so many firsts in my life, at a time when I began to believe that I had seen and done it all.
I reach the bottom step and snap out of my reverie. I turn to face the kitchen, and through the doorway I am greeted by the best part of my day, a vision of beauty that is only rivaled by my grandmother's own wet dripping face after accepting my release. I look into the kitchen from the hall and see my mother preparing our breakfast, wearing only an apron.
I cross the space between the stairs and the kitchen, her back is facing me and her attention is fully occupied washing the pots and pans she used to prepare this morning's feast. The motion of her work is causing her bare rear to shake and jiggle; as I get closer I stare at her peach-fuzz covered cheeks. I feel blood rush to fill my penis; the sight of my mother half naked in the kitchen this morning is filling me with energy and excitement.
From the sink she half turns towards me and smiles, soapy suds clinging to her arms and almost reaching her elbows. She pouts her lower lip and blows a puff of air up into her face to blow a strand of blond hair from her face. With a smile as bright as the sun streaming into the house she says "Good morning baby, just washing up - breakfast is about finished. How did you sleep?"
I walk up behind my beautiful mother and wrap my arms around her waist, encircling her tight flat abdomen. As I squeeze her firm body into mine I kiss my mother on the neck, then whisper into her ear "Good morning mother, I love you." As I speak these words I allow the tip of my penis closer to her rear, relaxing the tension in my hips. I can feel her instinctively push her ass back towards its favorite fuck toy, wriggling until the head of her son's cock is firmly planted between her ass-cheeks. I have no illusions that my mother may have more than one lover, but if she can be believed I am the only one that she allows to use her supple back door. Its virgin-like fit around my shaft when we fuck only solidifies this belief.
I pull my head back from her neck, the indefinable scent of her skin still in my nose. Still holding her from behind I begin to hump and slide my now fully erect penis up and down the cleft of her perfect ass. As my cock smears precum in between her cheeks I say softly "We slept like the dead. We slept so good, she even had the patience for a morning delight. When did you get here my love?" I release her and step back, letting my eyes devour her backside once again. She feels my eyes and pokes her rear out, shaking it like a naughty school girl.
She is my adoptive mother, and until the age of 18 she loved me like her own flesh and blood. When I turned 18 she began to love me like a husband, and on my 19th birthday she told me that she owed me the truth. My adoptive mother and I took a road-trip to meet my last surviving blood relative, my grandmother. It was not long after that first meeting that I moved in with grandmother, under the not-entirely-false reason of wanting to get to know my heritage better.