Warning: this story is in my opinion the most extreme entry into this series - contains grandmother grandson incest, bondage, anal sex, scat fetish, urination fetish, a hermaphrodite, hypnosis and very bad words. Viewer discretion is advised.
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On my 18th birthday I was introduced to incest by my surgically enhanced, hermaphrodite, adoptive mother. Not long after she felt she owed me the truth and I was introduced to my last remaining blood relative, my grandmother.
Through subtle manipulation I managed to stretch that summer visit into a month, then a year, and then three. In that time I transformed my grandmother from a maternal figurehead into my willing lover, sex toy and de facto prisoner. In December of year two my mother began to sneak into the house to check on me, and occasionally watch me use my grandmother, my incestuous relationship with my grandmother serving as fuel for her sexual fire. She would then use that sexual energy with other partners, in other relationships.
We fell deeper in love and as the third year of my grand experiment came to a close mother and I resumed our own relationship, making time to fuck in every part of grandmother' house. Just like the old days we would drop whatever we were doing and pounce on each other, our bodies smashing together in pure incestuous lust. Mother became very comfortable in grandmother's house during year three, and one morning she crossed the line and became a participant. She helped by bringing breakfast upstairs and seeing an opportunity she initiated an inter-generational threesome, son, mother and grandmother. This was the catalyst for a new level of depravity; a sex act that broke new barriers, smashing walls that I did not know existed.
Climbing atop the bed that morning mother changed everything, something she would slowly come to terms with in the coming years. She stepped into my experiment that day, and our already unique mother-son relationship would be forever changed.
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YEAR THREE:
"Mother," I began in a gentle tone "I have a confession."
On her knees facing me is my beautiful mother, naked. In her perfect, smooth hands she holds her thick girl-cock, deep pink and throbbing with excitement. In front of us on the floor is a plate filled with breakfast, grandmother's first meal of the day. On the menu today is pancakes, thick breakfast sausage, scrambled eggs with cheese and a pile of thick, crisp bacon.
Across from her I kneel, my equally engorged cock throbbing inches above grandmother's eggs. I stare into her eyes, waiting for her reply. As we slowly stroke our dicks, she purses her pink lips with curiosity.
"OK baby, I'll bite. What is your confession?" Mother's breasts wiggle enticingly as she begins to speed her hand motions. I hear her gasp and realize that her orgasm is near - I'd better get this confession out of the way and fast.
"Mother," I begin "remember when I told you that I wasn't fucking grandma?"
"Yes dear, something I'll never understand. Continue..."
As my breathing speeds up to match hers, I say "well... that's not entirely true."
Mother's beautiful blue eyes widen in mock surprise. "Well fuck me that really is great news! How long... wait. Why haven't you told me until now?" she pauses in her masturbatory motions, gripping her fat cock tightly to hold back the building orgasm.
"Well, "I begin "It's not exactly normal sex, mommy."
Mother emits a snort of derision, and says "Well what the fuck about this is normal, baby? In case you haven't noticed we are kneeling over her breakfast, about to cum on her eggs and pancakes - your idea I might add."
I smile coyly and reply "Well mommy this is a little stranger than we are used to."
Mother's expression becomes slightly alarmed as she resumes stroking her massive full cock. "Oh please, do tell."
"Well," I say with a naughty smirk "let's finish and I'll fill you in. Is that OK?"
Mother smiles and spits into her palm then continues. "OK baby, if that's the case then I'd like to... "
With this pause in her sentence Mother leans her beautiful head back exposing her smooth neck and moans low like an animal. Through clenched teeth she says "direct your attention to your mother's big fat dick as she..."
With a jerk of her hips and a gasp mother begins to orgasm, the first thick rope of pearlescent semen drawing a quick line across the top of grandmother's short-stack. Seeing mother's cum pushes me over the edge and I grunt in reply, squirting my load directly into grandmother's scrambled eggs. We both shudder and gasp as our cocks pulsate over grandmother's breakfast, unloading the contents of our balls.
With a sigh mother shakes the last drops of hot girl-cum from her beautiful pink cock. "Now, I believe you owe me a confession, young man. Give."
As my heart rate slows I say with a sigh "There's no easy way to say this, so I'll just say it. I've been fucking grandma in her ass."
Mother looks at me with an unreadable expression, somewhere between confusion and disappointment.
"...And? Compared to shooting cum with your mother into her eggs, that is peanuts. There must be more, stop holding out."
Mother stands and tucks her long, deflating cock back between her legs, forming a false vagina. I frown, and mother smiles. She knows that I hate when she mistreats her cock, and when she tucks in front of me I know she is doing it just to punish me.
Pouting her full red lips mother says "You make with the secrets young man and I'll let your favorite dick free again. If not..." With the pause she reaches for a pair of discarded panties, left in lust on the kitchen table.
I smile, raising my hands in defeat before I rise and stretch, arching my back.
"OK mommy, OK. You're right; there is more to this confession - so much more."
With a triumphant grin mother asks "Ok, tell me this, how long have you been sneaking that big dick into your grandmother's asshole? Was I home?"
"No mother, I usually wait until you go home."
Frowning she asks "But why baby? Why hide such a relatively mundane thing from me?"
Lifting grandmother's breakfast from the floor I reply "it's not the ass-fucking that I am ashamed of, mom." I say, "It's what I do before and after. Let's take this up to grandma and I'll explain."
Mother sighs and steps towards the sink to grab the silverware. "No matter what you say, it will not change how I view you baby. You are my only son, and I love you to death."
"I love you too mommy. I would die for you, and that." I say as I point to the hairless cleft between mother's legs. "I love your big fat mommy dick."
As we make our way towards the stairs mother's tummy begins to gurgle. It's not the normal polite 'oh I'm hungry, feed me now' stomach growling, it's more of a wet 'I just woke up from a late night Mexican food run' sound. Mother thinks she is simply hungry and laughs it off, but I know better.
Last week mother began a new fitness regimen, based around protein liquid meal replacements and dance-aerobics. The classes that she attends every other day have done wonders for her already flawless figure, she feels better and the sex has gone from incredible to godlike. Knowing my tendency to meddle in other's diets she took special pains to prepare her shakes at her place, and then bring the sealed shake container with her here to drink for breakfast and lunch. She makes sure to keep an eye on the container, even going so far as to place a hair across the lid when she thinks that I'm not looking. I see everything, and when she did not give me an opportunity to investigate, I created one.
Two days ago I fed mother a laxative in the only way she would not expect, the only way that she would never imagine her baby boy would dare - by slipping it, along with my cock, into her beautiful tight asshole. A gentle herbal suppository, designed to bring relief from light to medium constipation. When mother found herself urinating from her asshole not long afterwards, I took that time to check out the jug that she placed so carefully in the refrigerator, bottom shelf. The meal replacement was dark brown in color, watery in texture... perfect for concealing all sorts of goodies. Before she could fully empty her colon I slipped another laxative suppository into the container and resealed it, making sure to replace the single golden hair strand.
After that day she knew with a mother's instinct that something was up, she regulates her diet with the precision of a Swiss clock, and would never ingest anything that would cause diarrhea. She checked her protein filled container, satisfied that it was tamper proof. She felt on a primal level that something was up, but just could not prove it. Since that day, every morning I've slipped a laxative into her bottle, to keep her regular and set the stage for the next step in mother's development. I don't want her to gain weight or muscle mass, my mother is perfect and her body is my temple - I worship there daily. No, it is not her body that I want to alter; it is her powerful, sharp mind.
