You creep into the doorway of the kitchen. Your mother is chopping up potatoes for dinner, and a lot more than you would usually have. It seems her larger body comes with a larger appetite to boot. With her back turned to you, it's the perfect time for some 'enhancement'.
You switch the flashlight to 'IN' and turn it up to bright pink. As you watch, your mother's clothes shrink from a nice blouse and skirt to a tube top and miniskirt, then to a bikini. Holding it a little longer, you watch even those tiny strips of hot pink fabric fade into a short apron tied around her waist, not even trying to cover her chest. Though, since they aren't so much boobs anymore, just slabs of fat hanging off an otherwise manly chest, there isn't as much sex appeal for it.
Now with her butt on full display, only the loose ends of the apron daring to cover the two globes, you have an idea. You switch the light back to 'OR' and shine it directly on it. Under the pink light, her ass expands, two huge, jiggling balls of soft flesh, just inviting you to sink your hands into them. It surpasses 'bubble butt', even past what could only be described as a 'dump-truck' sized booty. It sticks out over a foot behind her and wobbles with every minute movement. It's the most succulent ass you've ever seen. But you're not done yet. You switch the light back to a full, bright blue. As you had hoped, her butt doesn't shrink, at least very little. Instead, a strange transformation occurs, each globe becoming more defined. They harden and clench, growing more dense and muscular with each second. Thick, vascular boulders of pure masculine strength, able to crush watermelons with the slightest twitch.
You turn the light off and watch your mother navigate the kitchen with her new booty in tow. She's still very graceful, though still bumps into things now and again, though she doesn't seem to even notice, with how powerful her butt has become. The most unfortunate case came as she back up and a dirty pan that has been stacked by the sink slid between her cheeks. By the time it hit the floor, it was a mangled heap of metal. You blush a little. Maybe you had gone a little far with that. Still, it is glorious, and you have other changes still to make.
As your mother raises her arms to reach the spices kept on the highest shelf, you make your move. Her back begins to bubble under the blue light of the flashlight, as the muscle hidden beneath layers of fat begins to rise to the surface. It only grows more and more defined, before it explodes in size and density. Two huge wings of muscle make up her back, with crevasses you could sink your hands into, and mountains that you're sure you wouldn't be able to dent with a crowbar. As she brings her arms back down, you make sure not to leave her biceps out of it; they too become huge barrels that only complete her godly figure from behind. It's only when she turns around do you realize what you've forgotten.
While the shadow she casts is impressive - a towering mountain of muscle atop her body - her front leaves much to be desired. That will change. You shine the brightest light you can over her torso, and down her legs.
Her pecs are the first to grow. Gone are the flabby man-boobs, in their place slabs of hard meat that jut out a foot from her chest. A thick bush of black hair covers them and curls down to her now insanely thick abs. You count ten, then twelve?! Impossible muscle bursts forth, matched only by the craggy obliques that surround it. Each brick is defined and would challenge your entire head for size.
And then there are her legs. What god-given pillars of strength they are! Not only have they grown taller, pushing your mother up a foot and a half to a staggering 8 feet they are thicker than your entire body. Forget watermelons, her thighs could crush tanks between them without her breaking a sweat. Her calves, similarly, have exploded in size, yoga balls that are riddled with veins and thick hair, leading down to her huge size 30 feet. You're in awe at the monster you've created, this behemoth of pure, unadulterated masculinity that laughs in the face of impossibility or any limit to human achievement.
Your mom notices you in the doorway, and at the same time, you notice something unfortunate with the effect of the light. Since you covered both her torso and legs at the same time, the light was centered on her crotch. And since the light was set to only affect organic material, that skimpy little apron didn't stop anything. And so, as you see your mother thundering towards you (not angrily, just the sheer weight of her body makes the ground shake, even on her calmest, lightest steps) your eyes are trained on the three-foot, flaccid python swinging between her legs. You can smell the musk a mile away, and see her soccer ball nuts dangling beneath it. It makes your own shaft feel absolutely insignificant in comparison.
"Honey, what are you doing in the kitchen?" Your mom rumbles in her deep voice. Her mind hasn't changed at all, still keeping her more feminine vernacular despite her masculine appearance. "Mommy was so focused on preparing dinner I didn't even know you were there. I could have crushed you if I wasn't careful."
Well, she still identifies as a woman, despite the monster that hangs between her legs. But the thought that she could hurt you? To accidentally crush you like you were an insignificant little bug? It was terrifying... and actually made you a little hard, thinking about it.
"Sorry... Mom. I just wondered if you needed any help."
Your mother chuckles and tosses her head back. You take the chance to shine the light at her throat, watching her Adam's apple grow even larger as her laughs grow deeper and deeper. When she finally looks at you again, you can feel every word she says vibrating through your bones - a bass that could probably cause earthquakes if she tried. "Sweetie, when has Mommy ever needed your help with anything?" She places a huge, and still manicured, hand against the wall near your head. Her biceps bulge and jump, just the lightest twitch that still sent tiny shockwaves across your cheek. "Have a good look at me. Do you think I need your help? Look, I know you mean well, but the most help you can do, sweetie, is stay out of my way."
Perhaps that cock of hers did change her mentally, at least a little bit. The extra testosterone her balls churned out made her a bit more aggressive and cocky than your mom would usually act. You can't say you dislike it all that much. But, trying to fight the rising boner in your pants, you just nod and meekly reply, "Yes, Mommy."
"Good. Now, how about I make you a little snack, and you can relax while I make dinner? Sound good?" You nod and turn away, pocketing the flashlight for now. Your mother smiles and turns back to her cooking.
But, before you disappear, you get the idea to make one last change...