A 'Loading' icon appeared on the phone's screen as soon as Danny's finger tapped the DE-EVOLVE button.
Danny uttered a high pitched yelp as a tingling sensation washed over him. The current year, 2016, appeared under the Loading icon and started going down. 2015, 2014, 2013... it started out slowly, then started to go too fast for Danny to keep reading the numbers.
1900, 1800, 1700, 1600, 1500...
Danny yelped in surprise after noticing he was starting to change.
His pajamas felt smaller, tighter against a body that was already growing beyond the 5'5" mark. His black t-shirt morphed into a simple white wool vest, while his pajama bottoms changed into a pair of loose linen pants. Danny also noticed there was stubble sprouting on his jaw and cheeks, while the rest of his body bulked up with muscle.
"Holy shit..." Danny muttered to himself, flexing his left arm with pride. The teenager's once frail constitution was starting to change into that of a medieval man, with muscles suited better for field work and sword-and-shield combat.
1500, 1000, 500, 0....
Danny's shirt lengthened into a dirty-looking robe, while his skin darkened slightly and the stubble on his face lengthened into a healthy beard. His face itched for a second, as his slightly childish facial and body features morphed into the rough features of a roman soldier. Danny's short hair lengthened and curled at the tips, attaining a slightly shaggy look.
"Whoa... this is so fucking cool!" Danny palped his belly, laughing as he felt the unmistakable outline of a bulging six-pack. His pecs bulged forward, while his back and shoulders swelled with enough muscle mass to make any football player in school look like a lightweight in comparison.
The date on the screen kept lowering, increasing the rate at which the changes took place.
2000, 5000, 10000, 15000...
Danny's robe simply came undone, falling in smithereens over the blankets and leaving the muscular-looking teenager wearing only a loincloth made out of crude fibers. Danny's muscles swole up even more, and a more than decent layer of hair sprouted throughout his body; growing particularly abundant across his pecs, abs and limbs.
The de-evolving teenager touched his face and gasped in awe. His formerly sharp nose had grown bulbous and big, his beard had fused with the tangled mass of hair on his head; while his lips thickened and pushed forward into a permanent pout. Danny had de-evolved right into the missing link between modern Homo Sapiens and Cro-Magnon man.
The app kept 'Loading'.
15000, 30000, 50000...
Danny was no longer human, or at least he didn't belonged to the Homo Sapiens.
The loincloth changed briefly into a crude piece of animal fur wrapped around his waist, before disappearing altogether. Danny screamed loudly after seeing the 12-inch monstrosity surrounded by a fuzzy pelt on his crotch. Then he yelped again, noticing how his voice came off as a deep, guttural growl.
The boy mumbled gasped again, feeling his jaw jutting out and his formerly pearly-white teeth changing into something that reminded him of the time he saw a chimpanzee snarl in the zoo. His spine curved, followed by his arms lengthening with muscle whereas his legs shortened a little in the process. The formerly tight abs disappeared as Danny's belly filled with subcutaneous fat and pushed forward into a gorilla-like round gut.
"DE-EVOLUTION COMPLETE!" The screen displayed, accompanied by a loud beep.
Danny fumbled with the phone thanks to his brutish and larger hands. He barely tapped at the screen with a long and jagged fingernail to see the resume of his changes.
SUBJECT: HORTON, DANIEL.
GENDER: MALE.
AGE: 17.
SPECIES: HOMO NEANDERTHALENSIS.
PERIOD: LATE PLEISTOCENE.
DE-EVOLUTION TIME REMAINING: 59:03:20.
He had a free hour as a Neanderthal Man, what should he do with it?
Danny noticed two things almost instantly: First, his vision was way more powerful than before. Even with all lights off, Danny had a clear view of his bedroom. Second: His sense of smell had become more acute, too. Not only was he capable of perceiving his own musky smell, but also his mom's perfume, a faint trace of the dinner they had earlier that evening, and the fresh smell of the lawn and trees outside.
The boy giggled after seeing his own reflect on the full-body mirror behind his door. He flexed his arms, laughing crudely as he saw how big his biceps were; and how bigger he was in comparison to Marco Avila or the other bullies. Reasonably, he had to be way stronger than a normal human; and those idiots probably wouldn't be a challenge anymore.
Danny had brief thoughts about going out to punish Marco and the goons from the basketball court. Then something else crossed his mind...
What if he used the De-Evolve App to revert Marco all the way down to a chimpanzee, a prehistoric rat or that Protozoa thing?
Danny laughed with malevolence and...
"Danny, turn off that damn TV! I have to work tomorrow, i need some sleep!" His mother yelled from her room across the hallway.
Danny placed a beefy hand over his enormous mouth and waited.
Then blushed as he saw his monster cock had grown erect, and he also started to feel increasingly horny.