Barbie
by dmaynard
A high-school sex bomb experiences a supernatural transformation, and starts an incestuous relationship with her brother


Barbie was a luscious 18 year old teen. Long shapely legs, round tight ass,
and bouncy brunette hair. She had pert athletic breasts, a slim hard tummy,
all topped with a tremendously cute face. She was quite literally any teenage
boy’s wet dream. She had eyes which could look innocent one moment, and highly
seductive the next. She stood about 5’9" (tall for a girl), and weighed a
toned 123lbs.

Barbie was personally fanatical about two things, sex and working out. She
secretly wanted to be bigger than what she was, but she didn’t feel as many
guys would be attractive to such a figure. All the same she did find a fair
amount of boys ogling female bodybuilders in the city she lived. A fitness
center near the high school was one of those places where boys would gather as
non-conspicuous as possible, and watch the women pump iron.

Barbie had several boyfriends of course. She had "standards" as she put it.
She preferred hung boys (don’t they all?), ones able to fill her vivacious
pussy to the max. She wasn’t much into sparkling personality, if they were
studs, she fucked them. No one regarded her as a slut that was banging her,
she would give you a cold shoulder if word got back to her, and that meant no
action. And NOBODY did not want to destroy any chances of getting with Barbie.
She was a "playa" plain and simple. She pulled good enough grades, but it
wasn’t due to her brain power.

Case in point, her English teacher, Mr. Collins. Mr. Collins was a divorced
40-ish man in decent shape for his age. He enjoyed backpacking, skiing,
camping, and other outdoor activities. Mr. Collins heard his doorbell ring and
when he opened the door, there stood Barbie. Her white tank top was pulled
taught against her perky young breasts, and blue-washed jean shorts hugged the
sexy shape of her hips and ass.

"May I come in Mr. Collins?" She purred sweetly. "Ummm...certainly Barbie, is
there anything I can help you with?" Collins replied.

"Well, I’m really having some problems with your lecture on sentence
structure." Barbie explained. Mr. Collins showed her the way into his living
room. He couldn’t help but stare at the tightness of her ass at it wiggled by
him. She smelled soapy clean, with a faint mist of some exotic perfume. She
made sure he was to the back of her as she walked into the room and bent over
to place her books on the coffee table.

Mr. Collins gasped internally at the sight of Barbie’s cotton denim’s creeping
up over the bottom of her young bouncy ass cheeks, followed downwards by long
tanned and toned legs ending with some rolled up white socks and sneakers.

She turned around, "Do you have anything to drink? Like water?" she asked. Mr.
Collins leapt into the kitchen and poured her a glass of water from the
fridge.

"Thank you Mr. Collins, it is such a hot day out." Barbie reached for the
glass but at the last minute purposely slipped her fingers and some of the
water sloshed out onto her chest.

Mr. Collins stared as the cold water seeped into her tank top, exposing the
fact that she was wearing no bra. Her nipples perked up with the cold, and
Barbie folded her arms, her breasts displaying an inviting channel of tanned
cleavage between her toned arms.

Barbie coyly reached down to the obvious bulge in Mr. Collins pants. She
slowly undid his belt buckle, followed by his pants zipper. Mr. Collins gasped
as her felt the young firm fingers of the girl grasp his expanding cock.

"Hmmm...Mr. Collins, you are a pretty nice size for a man of your age." Barbie
gently stroked the immense hard-on that had spilled out from his pants. Not as
big as some of the boys on the football team or basketball team, but more than
enough for her needs.

"C’mon Mr. Collins, touch me. I’m not going to bite." Mr. Collins reached
down. He grew instantly harder as he felt her young smooth skin hot from the
outdoors summer sun. He reached down hesitantly to her shorts, but she helped
him undo her zipper and button. She then turned around and wiggled sexily out
of her tight jeans exposing her well rounded curvy ass. Collins gasped as he
felt his dick slide against her soft butt muscles, she was wearing a tiny
white thong underneath that accentuated her young hips. She turned around to
face him, and he slowly traced his finger down the length of her tight stomach
tugging slightly on her cotton panties.

The young vibrant smell of her wafted up to his nose, he closed his eyes and
took a deep breath as he felt Barbie pulling the rest of his pants down and
off. She pushed him back onto his sofa, his raging hard-on evident as she
started to perform a strip tease for him. Her young supple, toned body swayed
sexily as she pulled off her tank top fully exposing her pert breasts. Pulling
seductively on her panties she bent over removing them, uncovering a moist
pink shaved pussy. Collins nearly came at that point, he considered himself a
decent lover, and was surprised at the sexual power she was charging him with.

They fucked for some time. Barbie rode Mr. Collins until her nearly passed out
from exhaustion. He suckled her young tits, massaged her young tight ass and
rammed his prick ceaselessly into her hungry pussy. When they were done they
had reached an understanding. She has never failed his class since, and an
occasional blow-job keeps things on the up-and-up.

Barbie felt satisfied with her life, except that nagging feeling about
becoming stronger, about working out more. She increased her gym activity and
also convinced her parents to purchase her a home gym. An interesting
situation happened one day while she was at home working out, her younger
brother Todd who is 15, came back from a friend’s house to find his parents
gone with a note. They are at a dinner party, back late the note said.

A dim clanking sound was heard upstairs and he knew Barbie was home working
out. "Cool" thought Todd. He threw his school bag onto the sofa and made his
way as quietly as possible upstairs. He stole into his room, and then opened a
hidden door that was a small passage to the shared closet he had with his
sister. One thing Todd never worried about was hiding his soft porn from his
parents, he didn't have any. He had his sister to provide for his fantasies
when she snuck in boys, or had them over when their parents were away on
trips, and she locked him in his room while he heard her sexual moaning from a
room over.

Todd edged his way into the shared closet space, the lats on her door were
open just enough to provide him with a wonderful view. His sister was doing
squats, luckily her fantastic ass was pointed his way. A soft sheen of sweat
covered her body as she lifted the barbell. Her tight teen muscles bunched
with strength as she squatted. Todd gasped as her toned round ass pressed up
against skin tight pink workout shorts with every squat. She finally dropped
the bar, stretching her muscles, hours of tanning gave her body a distinct
golden glow. Todd felt his manhood stiffening at the sight of his sister. He
knew it was wrong to voyeur on his family, but he couldn’t help himself. He
was mesmerized by her sexually charged aura.

Barbie knew her brother watched her escapades. She got kind of a small high
off of it knowing that she turned on even her own family members (she wasn’t
100% sure about her dad but she had caught him looking on occasion). Barbie
put on a little show for her captive audience, she pulled down her skimpy pink
shorts revealing baby blue panties that hugged her delicious curves. She
toweled off her sweat lifting up her sports top exposing pert athletic
breasts. Todd was amazed, he had almost never seen this much and something
tickled in the back of his head that warned of danger.

Barbie felt supercharged, powerful. She pulled back on her tight pink workout
shorts and did some push-ups before finally giving in to her base desires. She
sauntered over to the closet and whipped the door open. Todd looked up with
the most surprised expression on his face. His hand stopped over the
good-sized bulge in his pants he was rubbing.

"Ok little boy...get up and over on my bed NOW!" Barbie commanded. She felt
hot, hotter than usual, as if a power was building up inside of her. Todd
literally leaped to her command and sat there on her bad awaiting punishment.

"So...you like spying on me eh?" Barbie thrust her chest into his face, his
nose nearly buried in her darkly tanned cleavage. Todd tried to jerk away but
he was held fast by his wrists. "Go on, admit it. You like the way I make your
little thingie feel when you watch me don’t you?"

Todd slowly shook his head in acquiesce. Even now, being reprimanded, his hard
penis strained against his pants, which of course did not go unnoticed by
Barbie.

"Tell me Todd, do you like strong girls?" Barbie asked as she played with her
hair. Todd noticed small, round, and very hard-looking biceps spring up from
her arms. He tentatively placed his shaking hand on her arm and felt the
smoothness of her teen skin, it felt like a piece of silk pulled over steel.

"Not too bad eh?" Barbie flexed some more inviting him to explore her muscles.
"I’ll take your actions as a yes." she smiled. The funny thing was, Barbie
felt more and more hotness surging through her as Todd massaged her arms.
"Strange, I feel as if I’m almost going to burst with this heat." she thought.

And then it started. As much to her surprise as Todd’s. She began to grow,
inch by inch, her body solidified with muscle. Tearing sounds were heard as
her expanding ass cheeks split the seams of her workout trunks. Her body
became more vascular as muscle grew, and sprang forth. After about 3min, the
growing stopped. Barbie stood there, her straining torn shorts were tatters
about her sculpted waist. While she wasn’t immensely huge, Barbie was
definitely bigger. Snatching a measuring tape off her dresser, she had Todd
measure her arms. She flexed her right arm into a prominent bicep which Todd
recorded as 15". Her thighs measured in at very nice 22" and her chest 34".
Flexing her lats Barbie tore a hole down the center of her top, and the haves
fluttered to the floor.

"Wow...this is INCREDIBLE!" Barbie exclaimed. She was bigger, but not
grotesquely huge. She had the appearance of say Debi Laszewski retaining her
teen beauty, and feminine form, but with an obviously sculpted hard body. Todd
sat there dumbfounded, his sister flexed and posed in front of him, her blue
panties stretched skin tight against her tanned hard body.

"Heh...looks like I’m not the only thing in this room that’s hard." Barbie
eyed Todd’s straining bulge with a seductive grin. "Let’s see what my little
brother is packing." Barbie cooed, she slowly undid his button and zipper as
Todd’s erection sprang forth. "Hmmm...not a bad size there little brother,
you’ll be a pussy breaker for sure with that hunk of meat." Todd had
conflicting emotions raging throughout his body and mind. He was somewhat
repulsed at the thought of his own flesh and blood manhandling him so, yet at
the same time his sister’s overwhelming sexual allure stiffened his manhood
like nothing ever had.

"Let’s say we give that monster a taste of what’s to come?" and with that
Barbie tucked her thumbs under the straps of her panties and gave them a sharp
tug. Her blue underwear hung in shreds in her finger tips, her hard sexy body
bare as the day she was born with the exception of little white rolled socks
at her ankles.

"Barb...I don’t think we should be doing this..." Todd started to mention.
Quick as a flash Barbie had her brother in a headlock, her young sexy biceps
ballooned around his face, the hardness of her muscle pressed into his cheeks
and she held his head like a vice. "Don’t ever contradict me wimp..." Barbie
snarled, yanking up slightly on her power packed arm. Todd whimpered at the
strain on his head and neck and came to the prompt realization that his sister
was much more powerful than she looked.

Barbie’s cool sweet face belied the ferocious intensity in her eyes. Todd
squealed his compliance and Barbie loosened her grip. Todd sat back on the bed
rubbing his neck. "Well now...you’d better get your thing up and running if
you don’t want to experience any more pain." Todd looked down at an obviously
deflated penis. He gulped, knowing that he had lost some of his excited ness
due to the punishment Barbie was (and is) delivering.

"Go on, get started...I won’t wait long." Barbie flexed in an intimidating
fashion and Todd began to rub his flaccid member slowly regaining his
hardness. "There you go, get that prick hard you little bitch-boy...I want to
see that meat of yours sticking up high!" Barbie breathed. Todd worked his
prick over like never before, fearful of his sister’s threats, but sexually
excited at the same time.

While rubbing himself, Barbie explored her new body, caressed her muscles,
pumped her double-biceps and licked the mounds of hard flesh that grew from
her arms. She swayed her meaty thighs back and forth and then snap-flexed them
into extreme hardness cooing over their size and how the veins criss-crossed
her legs with amazing vascular-ness.

"Ahh...good job Todd...didn’t take you as long as I thought, and why should
it? Near perfection of a woman standing in front of it’s hard not get a little
excited eh?" Barbie teased. Barbie pushed her younger brother back onto her
bed, he let out a soft cry as he felt her sopping wet pussy envelope stiff
rod. "Shhh...little brother...just enjoy the ride...I promise it will be fun."
Barbie whispered in his ear. Todd felt the heaviness of her body on him, the
hotness of her soft skin as she slowly pumped herself on his shaft.

Todd’s little body was nearly covered in Barbie’s sumptuous muscles, she
breathed heavily into his ear pumping her shapely hips faster and faster. Todd
reached down almost by instinct and grasped the firm buttocks of his sister.
Their roundness and sexiness as they pumped up and down was electrifying. He
felt the relaxation and flexing of her glute muscles, her thighs expand and
contract as she pulsed her sex forcefully onto his thick shaft.

"Barb...Barb! My penis feels weird..." Todd stammered. Barbie smiled and
increased her pace, Todd closed his eyes and felt the rhythm of his sister
beat against him, the tightness of her pussy milking his cock.
"Barb...Barb..." he mumbled he looked up and saw Barbie had entered a dreamy
state, she moaned softly and she felt her orgasm pending.

Right before Todd and herself came, Barbie sat up rocking her hips as fast as
she could and flexed her arms in a massive double-biceps pose. She licked her
lips feeling power course through her, Todd moaned as well and with in seconds
she let out a sharp cry as her orgasm exploded. Todd felt his cock swell for a
second and then he burst forth with his own powerful orgasm, jetting his cum
into Barbie’s hungry pussy.

His sister continued to ride his slowly deflating cock, milking every last
ounce of cum from his balls. She finally sighed with relief and rolled over
onto the bed, Todd’s flaccid spent dick slopping onto his thigh. She lay there
for a few moments, breathing and then something strange happened. She didn’t
grow at all, but for some reason she "felt" more powerful. More "dangerous".
Barbie looked over at her exhausted brother nearly asleep from the ordeal. She
dressed and placed him in his bed and then retired to her own room. Thinking
of he she was going to go about using her new found power.

***The End (for now)***