Wendy 1

Ken drove up to his house still sweating from football practice, excited to see his little sister. He hadn’t seen her since Christmas since he had been at college all of his freshman year. He had now transferred to a school close to home, the same school his sister attended, where he got a football scholarship. 

Ken stepped out of his truck feeling the blistering heat hit his neck and back of his long legs as he headed towards the front door. He opened it feeling the rush of AC onto his face, seeing a bunch of luggage piled up in the living room. He set down his duffel bag heading upstairs into his sisters room and saw the bathroom door cracked open. He walked over to the grinning ready to give his sister a noogie like he always did, when he saw a huge woman standing there.

“Fuck!”

Ken’s slipped out the word without even thinking as he stared at the figure in front of him. The skinny short sister they sent off to boarding school wasn’t so little anymore. She must have been standing at least 6 feet tall and thick with muscle. Ken stared at the tight shirt trying to hold back her massive back and bulging muscular neck pushing out of the tiny collar. The top of her muscular ass was exposed stretching the under sized briefs to their limits, wrapped around the two obscenely defined legs. Ken stood there in shock when Wendy turned around

“Oh hey Ken”

Her voice was an octave deeper than he remembered, and he stared in open disbelief that her front side looked even bigger then the back. He quickly glanced down at her ridiculous bulge, his mouth dropping open at the sight. The tiny underwear was stretched out at the crotch, cupping what looked like the world’s biggest clit. Herblond pubic hair was pushing out of the sides of the briefs, a perfect blond trail leading up to the tight abs.

“You Ok Ken?”

“Uhh yeah You’ve just gotten.. really big”

“Haha I Know! Your sister is hitting a major growth spurt”

Wendy raised both his arms up and flexed them making her biceps explode to 16 inches of raw strength, her sleeves sliding up to her shoulders. Ken watched her arms start to get covered in veins as he glanced at the thick pecs about to explode out of cheap fabric.

“Just think Dude If I keep growing This Way, I’ll grow Bigger than you in no Time Haha!”

Just as Wendy said that she turned around and bent over to grab her jeans making her underwear slide up her perfect ass crack. Wendy turned around towards Ken again trying to slip her jeans over her massive legs finally squeezing them up to the waistline. Ken couldn’t believe it as Wendy struggled to zip them up over the immense bulge of her clit-cock.

“Shit Dude! I Swear these things get tighter and tighter everyday!”

Wendy started tugging on the zipper with her thick veiny arms making a deep grunting noise. Finally the zipper started sliding up covering up the muscle woman’s hood. Ken now stared at a huge denim covered lump hearing his sister laugh.

“Fuck Dude I’m going to need to buy some new clothes fast! Hey can I borrow one of your shirts, I tried dads on but they can even fit past my pecs haha”

“Uh Yeah go ahead..”

Ken watched his not so little sister walk into his room slamming open one of his drawers. He watched Wendy take off his shirts exposing the thick muscular back on the young muscle teen. She grabbed Ken’s favorite Seahawks t-shirt sliding it over her ripped shoulders, turning around snickering.

“Fuck dude I can’t believe I used to think you were big! This is almost too small on Me”

Wendy flexed her pecs, which seemingly had no discernable breasts, just thick, striated pectoral muscle. The fabric of the shirt stretched in and out, rubbing her rippling chest. It looked obscene.

“I’m going to use the truck, are the keys on the counter?”

“What… Uhh Yeah they should be”

“Ok aWendyome! Oh man these are tight! Could you imagine if I flexed my legs I would Blow these fucking things apart!! Oh Well At least they show off this big boy”

Wendy started rubbing the outline of her mammoth denim bulge right in front of Ken, in complete ecstasy with herself. She turned towards the mirror again flexing one more time, adjusting her clit-cock in her pants, then headed out the door. Ken couldn’t believe this was happening. In less then a year his little sister had gone from a skinny and pathetic little runt to almost as big as he was, and Wendy was only 18!

“She has to be using steroids”

Ken heard the downstairs door slam, and went down the stairs into living room where Wendy left his stuff. He quickly opened up bag after bag searching through everything but finding nothing. He finally came across the last bag and opened it up. The clothes reeked of sweat.

“this is must be her gym bag..”

He picked up the clothes realizing all of them were ripped. Some of them he remembered Wendy wearing in middle school were now stretched and ripped to shreds. He got down to the bottom of the bag finding nothing but cum stained underwear. The smell was intoxicating. He held them up closer to his face when he heard the garage door open. Ken quickly stuffed the clothes back into the bag and headed upstairs. For the next couple of house Ken laid on his bed thinking about what he’d seen over and over in his head. He thought about Wendy’ bulge when he started to get hard. He got up off the bed, shaking off these lurid thoughts about his own sister.

He quickly grabbed his cell phone Inviting his girlfriend Nicole over for dinner. He took a shower and then headed down for dinner. His mom and dad were downstairs setting up dinner when Wendy walked through the door with Nicole

“Oh Wendy you Know Nicole” mom said politely.

“Well I know her now!” Wendy grinned at Ken “We both pulled up at the same time to the house”

“Yeah Ken you never told me your little sister was so big and muscular!”

“Yeah, well, she’s almost as big as me now,” Ken replied sheepishly.

Wendy flexed her muscles chuckling, still in Ken’s Shirt as she let Nicole feel her muscles. Ken filled with anger watching his younger sister flirt flaunt herself at his girlfriend. 

The whole time during dinner the two parents talked about how proud they were of Wendy’s progress at the gym. Ken kept looking over at Nicole noticing she was giving all her attention towards his little sister.

“Wow Wendy I can’t believe how big you’re getting though, and you’re still two years younger then Ken! I guess it must be the gene’s from your old man haha” dad giggled.

“Good Gene’s indeed” Wendy Flexed again, looking at her biceps proudly. “You Guys wouldn’t believe all the shirts I went through this year! I have been having to buy new clothes more and more haha”

“Anyone want some desert”

Mom started grabbing everyone’s plates and headed towards the kitchen when one of them slipped dropping onto the floor.

“Oh Let me help you with that mom”

Wendy got up and bent over to pick up the plate when everyone heard a loud tearing noise. Kens mouth dropped wide open realizing his little sister’s muscle’s had just ripped through the back of his shirt making it fall to the floor, leaving her clad only in an overstretched sports bra. Everyone stared in shock at how ripped Wendy’s body was as she stood up laughing. Both Ken and the dad gazed at the muscle teen’s ripped 8 pack and thickly defined pecs. Wendy looked over at her Dad’s face and chuckled

“Looks like I’m getting Bigger by The minute Huh Dad”

Ken was sporting a raging hard on realizing his little sister was so big that she tore through one of his own shirts. He looked over at his girlfriend looking like she was just about to have an orgasm as Wendy went upstairs to get a new shirt.

After dinner Ken went into Wendy’ room while she was doing push ups on the floor, angry as hell.

“What the hell were you doing with my girlfriend Wendy!!”

“Ken just chill” Wendy stood up soaked in sweat “Besides I think she was into me haha”

“You Think This Is Funny!!” Ken Grabbed Wendy by the shirt yelling at her “I’m Still bigger and I can still Kick your ass”

Ken went through the bathroom connecting to his room just about to slam the door when he heard Wendy chuckle

“For Now” Wendy said with a smile.

The Next morning Ken got up quickly, heading into the shower. for the first day of school. He was excited finally being a sophomore and not riding the bench as a freshman. He slowly soaped up his body thinking about how he needed to start working out more before Wendy got any bigger. He took some body gel and started working it up his bubble butt

“Hey Bro!”

Ken shrieked covering up his penis turning around to see Wendy standing there holding open the shower curtin, clad only in briefs and a sports bra. She looked bigger than last night in every way. It was only a matter of time before she would outgrow him. 

“Wendy! What the fuck are you doing in here”

“I need to show up to school early, and mom was using the other shower! You need to hurry the fuck up.”

Ken covered up his dick even more looking down at his Little sister huge bulge under her briefs, trying not to drool. It looked like it might have been bigger than his.

“Dude Ken why the Fuck is your dick covered it, Don’t you take Shower’s with the team all the Time…..Oh wait.. dude is it Small!”

Wendy Swatted Ken’s hand away from his crotch area exposing her big brother’s penis. Wendy Roared with laughter

“Holy Shit Dude How do you Pleasure Your Girlfriend with THAT Haha! I bet mine’s bigger flaccid then when yours is Hard HAHA! I have to see this!”

Wendy Rubbed his cock making it get rock hard inching further and further up his abs. Wendy grabbed Ken’s cock still laughing stroking the baby dick up and down. Ken yelled trying to pull Wendy’ Hands down

“Come on Dude I Just wanna see how small It is”

Suddenly, wendy ripped her briefs down. Ken gasped, watching her giant clit-cock roll out and slap against her thigh. Wendy grabbed Ken’s waist, and pushed her clit-cock against his. Ken got completely turned on. He wanted to stop but he couldn’t stop looking at his sister’s growing body. Wendy became hard, her thick, veined appendage slowly rising up against his own. They both watched as Ken’s Dick stopped at full erection, but Wendy’s kept growing, stretching higher.

“HAHA Is That It!! Fuck Dude I’m like 3 inches bigger then you! So that mean’s you must have Like a 5 inch pecker!! HAHAHA”

“Shit up, you freak! You’re turning into a man!”

Wendy stopped laughing as her eyes filled with anger. She flexed her arms vigorously making them explode with veins

“YOU THINK I’M A FREAK?!!”

Her body was trembling as she pushed her erection against Ken’s thigh. Ken actually stood there scared of his own little sister as she moved in closer pushing their two bodies together. He watched as it almost looked like Wendy was growing right in front of him, veins piercing out from her forehead. Ken finally wherpered the word

“no”

Wendy suddenly laughed. “Oh, but I am a freak! You know what? I think I’m more of a man then you!”

Wendy Grabbed her clit-cock and started jerking off right in front of him. She grunted and grabbed her pec with her free hand, licking her lips, watching her brother’s jealous eyes. 

“Ungh yeah, bro, I’m a total muscle freak!” she cried, orgasming and shooting cum all over Ken’s chest. Without warning his cock cummed uncontrollably shooting sperm all over his legs. 

“Oh, you liked that, didn’t you bro? Well I hope you enjoy watching me get even bigger!”

He couldn’t believe what was happening..Wendy was going to get bigger.. and there was nothing he could do about it. 

She left the shower and started using Ken’s towel, drying herself off. Ken peaked out of the shower and saw his sister’s perfect bubble but bend over making her whole lower body flex.  He finished washing himself off feeling completely stripped of his manhood.