So it was that the life of Jeff the boy did truly end. He was his mother's passenger, merely a silent observer as she went about her days, woefully unaware of her son's presence or new station in life. As the years slowly ticked by a slight sense of normalcy returned to Jeff's family. They gradually picked up their lives the best they could after his seemingly unexplained disappearance. Jeff's mother never entirely accepted that her son was gone out of her life, and some nights she would cry until her eyes were puffy and red or until she fell asleep while looking at family photos, reminders of what was lost. If she only had an inkling toward how close her son really was. Hearing the brokenhearted sobs of his mother was hard to deal with some times, but he knew she would carry on. She put Jeff through his paces as his maternal figure broke him in over the years.
Jeff's mother was a shapely specimen and she had always possessed a rather large behind, but it seem that much bigger from between her cheeks. Her ass became Jeff's whole world. Most days saw Jeff encased in darkness and moist warmth. On occasions he was offered brief looks of the world outside his mom's buttocks. He had been in the dark for so long that his vision had become sensitive to light. After initially being blinded, Jeff's vision would adjust and despite the immense, light tan protuberances at either side of him filling much of his field of vision he would be granted narrow glimpses of a bathroom before his mother would bath, or the interior of his parents bedroom as the two would become intimate, or when his mother changed clothes. What ever the environment it always seemed so far away, so alien.
Jeff was perpetually encapsulated by the heat of his mistress’ body, and a substantial amount of it radiated from her womanhood. Jeff would catch whiffs of his mother's womanly aroma as it mixed with the stink of his surroundings. The resulting stench was...not entirely unpleasant. As an anus Jeff no longer had any responsibilities or expectations placed on him other than the expulsion of his mother-turned-mistress' flatulence and feces. He no longer had to worry about such trivial things as food, water, or even breathing. Since he had joined with his mistress' circulatory system her blood replaced his own. When his mistress would eat or drink, sustenance would be provided to him once the food his former mother would eat would be digested and metabolized into her blood. When she breathed the absorbed oxygen molecules would be supplied to her former son as well. Jeff had a sense of security. He was tucked away from the outside world and nestled between his mistress’ plump buttocks where nothing could reach him. It felt cozy, safe. Jeff's only concern was when when his mother would pass gas, use a toilet, or when his dad would engage in anal sex with Jeff's mother, the latter inexplicably finding the experience all the more enjoyable thank's to her son turned anus' heightened sensitivity and youthful tightness. Though Jeff thought about the life he lost and what could have been if he acted differently, there was no denying that he had a purpose in his anal form.
As the passage of time grew ever longer, and Jeff's mother's looks began to loose some of their luster, her butt steadily grew a little more rotund further burying her long lost son in layers of supple booty meat. She would however retain an overall alluring figure despite going a little soft around the edges, even as she gracefully aged into her golden years. Jeff of course was there for it all.
The End?