Jamie's Experiment.

[Themarble]

This was just an idea that came to me just tonight and so I wrote up the first chapter. This one won't be long and I do have the other chapters planned, so expect up to four or five. I hope you enjoy! If you have any ideas for how Vanessa may act or react let me know, as I've said I have ideas but if someone has one better than myself I may consider using it!!!
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Jamie was so happy that his family had moved into a new neighborhood, the house was way nicer and spacious. Him and his younger sister now had separate rooms and that was a prayer come true. 14 year old Jamie had started to need to jerk off, a lot… A Lot a lot. Some days it was all he could think about, all he wanted to do. From the morning to the night, if Jamie had it his way, he'd be tugging constantly.

Of course there had always been complications, he only ever got to do it in the shower and even that was risky as in the previous house there was no lock! Now that wasn't an issue, he'd be able to do it in his room as long as he wanted to!

Today was a special opportunity though, one that didn't come around often, and one that happened for the first time in the new house. Dad was at work, as usual, however both Mom and his younger 11 year old Sister Vanessa were out shopping and wouldn't be back until the night when they promised to bring pizza.

Jamie looked at the clock on his wall, it was 3 pm now, that left him around 4-5 hours if he were lucky to do whatever he damned pleased. He started to jerk off, his dick got to around 6.8 inches when hard and from all the incognito research he did online, he knew that it was pretty long, impressive enough to show off.

He had always wanted to show off, to flash someone. It was a long standing fantasy of his, but he was always too scared to actually do something like that. To follow through!

He knew in his heart he couldn't flash, but he could try and experiment? No one was home… No one could see his debauchery…

Jamie stopped jerking, stripped off his remaining clothes leaving him naked with a long skyward boner and set off out of his room.

It felt weird stepping out naked, there was a tingling feeling in the pit of his stomach, he could hear his heartbeat pound in his ears. Oh this was so naughty! What if someone was actually home? What if someone stayed behind and didn't say anything? What if someone broke into the house right now?

Jamie turned back, it was too much. He was frightened. But when he turned and looked down as his cock gave an enthusiastic lurch, he turned back around.

He was being silly, no one was home. Mom and Vanessa both said they wanted to go yesterday and when mom left she never mentioned anything about Vanessa so they must be long gone now, he was just being paranoid and he would not let that ruin his jerk off! Not today!

Jamie couldn't believe he was walking around his house like THIS! He gave himself a tug as he walked. His body felt electric right now! He passed a window, and when he was in direct sunlight he felt as though there were a thousand eyes looking at him. The feeling someone actually saw gave him a fright but looking outside, no one could tell he was naked if they looked at him, shirtless for sure but not naked.

Jamie stopped at the top of the staircase and peered down, his erection still in view. Was he going to venture down? Like this? What was his game plan?

There were more tugs to be had, especially while Jamie was in the middle of thought, though perhaps this wasn't the best course of action? The sensations were skewing Jamie's reasoning and so the naked and aroused boy had convinced himself to make a sandwich…

Jamie crept down the stairs. He had no idea why he was but it just felt like something he'd have to do. Especially if there was anyone downstairs. There wasn't but that didn't stop his imagination going into haywire.

Imagining situations where he had no clean clothes upstairs and he would have to sneak downstairs to get a fresh pair of undies while avoiding anyone who could see him. He'd have to be naked to do that. Of course he would, he couldn't grab a towel! Oh no no no!

A bead of precum emerged and Jamie quickly wiped it with his thumb and then onto his leg. His cock was so rock solid it barely waggled when he walked. No it just stayed bolted onto his crotch in a rigid skyward position. If Jamie had any allowance left, he'd bet all of it on the fact that he would have the strongest erection in the world right now!

He finally planted a foot on the downstairs floor and felt that tingly pit grow that ever larger. Oh this was different! Better than any jerk off session. He thought that if he finished himself off right there he'd make a massive splatter mess of the floor. Better to save it for the shower! This was going to be a big load!

He quickly passed the closed living room into the kitchen and dining room. There was a large glass pane that showed the entirety of the garden. Jamie was so lucky that a tree blocked off the view from the house opposite.

It didn't take long for the boy to get to work making his sandwich. Notably not washing his hands… His erection swung about as he started to add condiments and ingredients. He was making a sandwich that would fill up his growing boy belly and his slowly dropping appendage.

Jamie looked at it, now this isn't how a strong young man shows himself! No, he needed to show he was proud! His hands let go of his completed meal and went to attend to their drooping ally!

Jamie tugged himself into a nice strong erection. Jerking off downstairs! Whenever the opportunity next arises, Jamie will make sure to take full advantage of it.

Now fully erected Jamie grabbed his plate housing his masterpiece and proceeded to walk past the counter to the dinner table.

He was halfway there when Vanessa came out from the hallway and turned to him. His erection pointed directly at her as her smile came into frame. A smile that lasted all of one second when he eyes travelled down to see what her older brother was showing off, and what a sight it was!

Her arm stretched as her finger pointed right back at the boner that was positioned her way. Jamie's hands lost grip of his meal as the plate and food smashed across the floor as Vanessa let out!

“Jamie!!! Your wee wee is up!!!”

Jamie's hand went to try and cover himself to provide some level of modesty, even if the organ was way too large to cover as he wailed.

“Vanny?! Oh why are you here?!”

[NudeBaG]

What a lovely surprise!
Can’t wait!

[TeenFan]

What a big and impressive boy Jamie is (at least in the wee wee department).

Glad to see you got an idea and went with it right away to get something started.
Most of the time you think about stories so long (trying to perfect them) it's like paralysis by analysis.

I'm guessing little Vanessa had plans too, getting to stay home instead of going shopping. Uh Oh...is that the doorbell ringing?

[Jeepman89]

A wonderful surprise indeed, Marble. This should be good!

[Themarble]

There wasn't a lot for the young teen to do or say. He was caught stark naked with no real way to explain himself, and to top it off his boner remained upright.

“Haha! What were you DOING?! Making food NAKIE?!” Vanny was in a fit of giggles.

“Go away Vanny! Leave me alone! ” Jamie whined.

“Why should I leave you alone? You didn't mind being a dummy and coming downstairs nakie! But ok, I'll leave you and your pointy weewee alone to clean up!” Sure enough Vanessa left the naked boy to his own devices.

Now alone, Jamie grabbed what he could of his ruined meal, throwing it in the bin quickly, before using the dustpan on what remained of the plate. Bending over, he noticed a slight nick in the marble floor. Mom was going to kill him when she saw it! Now he just needed a way to get Vanessa to shut up about what she saw.

He couldn't believe he didn't make sure no one was home, though to be fair to himself, both mom and Vanny said they wanted to go out yesterday! Jamie was just way too horny to have done a prior check!

His penis had not retreated to a semi-erection holding the dustpan as he heard Vanny call out!

“Oh look at what mom bought me yesterday!” She exclaimed, stepping back into the dining area.

*Click* *bzzt* *bzzz bzzz*

He couldn't have expected that his little sister would waltz back into the room with a cheap Polaroid camera, giggling to herself about what she had just done.

Jamie, not wanting to make another mess, quickly put the mess inside the dustpan into the trashcan before deciding to cover himself.

All while he was doing that the Polaroid finished printing and Vanny was giggling as the picture displayed the view she had just seen! She was ecstatic and quickly went to show it to her brother who then quickly understood the severity of the situation. Initially Jamie thought the quality couldn't have been good, the image couldn't have been clear but he was dead wrong and on that photo as a picture of him, naked, semi erect and in the family kitchen.

Jamie didn't even want to think about what punishment may fall upon him if his parents ever saw that picture and he wasn't going to let it ever get seen by anyone ever again. Jamie would rather his sister tell his parents and he would say she was lying, making up some reason why she would, then having her go to them with that photo and so Jamie snatched it.

“Hey!! Nooo that's my photo Jamie!” Vanessa let out before starting to run from her naked older brother.

“GIVE ME THAT!” Jamie sped up after Vanny one hand still covering his now full fledged boner.

Seeing that photo turned the right cogs in his exhibitionist brain and had resulted in him pointing all the way up. This was an inconvenience for his chase though and though he wanted to keep covering his embarrassment, he couldn't and so he let go and continued his chase.

By now his erect member was loudly slapping against his pubis as he ran, Vanessa turned around for a split second upon hearing those slaps and began to cackle a bit.

“Jam’s weenie is going wham!! He was all nakie on cam!!” She began to sing.
“Up is his weewee! Let's hope he doesn't have to pee pee!”

Jamie was sick and tired of Vanny’s games and so with a lunge he finally got a hold of her. Not before his tricky younger sister used the last trick in her book and opened up the top of her shorts, supposedly with her panties too and dropped the picture down there!

Defeated! There was no way Jamie was going to fight his sister for her shorts and panties. Not while he was naked! Not ever!

He began to cover himself in defeat before Vanny started to say.

“No no, you listen to me big bro! I'll show mommy and daddy this photo if you don't follow what I say!”

This was the one thing he didn't want to happen!

“First things first! No covering up your weewee anymore! I've seen you nakie and I have a picture so I can see you naked whenever I want! Now drop em!” Bossy Vanessa had come out to play.

Reluctantly Jamie's hands had to give way and fell to his sides, his erection stood rigid for the gaze of his giggling sister.

“What a naughty weewee! It's not supposed to be up like this is it? It never did when we were having baths as kids!” Vanny pondered, she knew that they got bigger just never how or how much bigger they got. She now had access to a lot more information than her peers, perhaps she could use this information to become the most popular girl at her new school?

Jamie didn't want to figure out what was going to happen next but he didn't have to wonder for long as Vanny then said,

“Follow me, we are going to the backyard!”

“What? No! Not like this!” Jamie cried out while Vanny began to pull him lightly by the arm while Jamie just had to follow.
“I can't go like this! Please Vanny!”

“Oh, but you are Jamie! I have the photo I need to make you listen so you're gonna follow me and go out with your weewee all stiffie! All stiffie in front of me! Maybe he likes me? That could be why he is all big in front of me?”

It didn't take long for Jamie to be standing on the patio outside the glass frame, butt naked with the hardest hard on of his life in the back yard. He turned around to see if Vanessa would reconsider but to his horror she once again held the Polaroid and once again…

*Click* *bzzt* *bzzz bzzz*

Now he was on photo with a full stiffy.

“No you can't take photos of me!!!” Jamie whined.

“Oh ho ho, yes I can!” Vanny beamed.

[Jeepman89]

Awesome chapter, Marble. I love that Vanny has the upper hand on the bare naked Jamie now that photos have been taken. Who else will see his big hard weewee I wonder?

[TeenFan]

Little girls with cameras are always bad news.
I didn't have a sister until I was 17 years old. She never had the chance to catch me doing anything I shouldn't be doing.

[Themarble]

There wasn't anything he could do, the situation was well and truly hopeless and Jamie was just hoping that Vanny would get bored and let him go the rest of his day soon. A naked boy can't be that exciting can it? Jamie was underestimating Vanny, how much the young innocent girl wanted to see, she was curious and she was handed the tools to discover all she wanted by big brother dearest.

Though she normally would never want anything bad to ever happen to big brother, whether that be trouble or embarrassment, this was all to further her understanding of boys.

“Ok I want you to get on your hands and knees and become a dog for me!”

This was not what Jamie was expecting whatsoever, but he wasn't in a position to argue, this was probably the best way to get those photos destroyed, hell it was definitely the only way to stop them leaking anywhere.

“Woof Woof!” Jamie tried to one up his sister hoping that the enthusiasm would speed up this entire process and get it over and done with.

“Haha! Oh! HAHA! I DIDN'T EVEN TELL YOU TO DO ANYTHING YET! HAHA!! Oooohhhh, you are so silly Jamie! But what did I expect from a boy who went downstairs nakie!” She barely got her next instructions out through her laughter.
“Ok! Ok! Go fetch!”

A frisbee went flying through the air, very close to the ground and slowly fell into place near Jamie. On his hands and knees, Jamie went to use his hands.

“NOOO! THAT'S NOT HOW A DOGGIE DOES IT!”

“Well! Well that's cause I'm not a doggie!”Jamie snapped back.

“I told you to be a doggie so you be a doggie! You are dressed like one so I expect you to act like one!” She crossed her arms while patiently waiting for her big brother to pick the frisbee up with his mouth.

It took a couple of times but he managed it and returned it to his sister who began to praise him immensely, with a baby voice, truly putting on the act that he was in fact a dog.

He even got a hair ruffle before she threw the disc again. He reluctantly turned around again hearing his sister scream,
“I can see your butthole this time!!! Haha, oh it looks so weird! Your weenie is still big too! Do you like this?”

Too many questions for Jamie who focused on his task at hand. This task repeated for a couple of times until Vanny got bored of it and called her brother over.

“Hmmm, you've been a good boy! I think it's time for me to rub your belly, and then I'll let you go!” Vanny pondered, she was just a young girl and didn't really know what else naked boys could show off so she assumed she had seen most if not all of it, but she wanted a closer look at the penis he had.

Jamie flipped over, his back on the grass letting his now slightly less erect member to rest across his pubis.

He just laid flat and Vanny didn't like that, he had to lay back more like a doggy, slapping his belly lightly which got him to raise his arms a bit in a dog style as well as his legs.

“That's better haha!” Vanny giggled before starting to rub her brother's belly.

The entire time she was rubbing his belly she was looking at his penis, the way it lay on him, the way it was slightly swollen, somehow looking smaller than before,not by much but definitely a noticeable amount.

Her fingers inched ever closer to her brother's member as Jamie watched, not knowing if she was going to do that!

Jamie's member started to get fully erect again which stopped Vanny advances as she watched it grow to the full size she saw earlier! At this size it intimidated her a bit but seeing the position her older brother was in, she wasn't scared and wrapped her fingers around the base of the shaft and held it up!

“VANNY! Oh my god, what are you doing! Don't touch me there!” Jamie's wails were ignored under Vanny’s giggling.

“But I can do what I want! Remember I still have the pictures so if I wanna touch your weewee, I'm gonna touch your big weewee.” and big compared to her hand it was.

It would take three of her hands wrapped around it to cover the thing properly, and when she squeezed it she noticed it was rather hard, but traveling her hand to the pink head it was nice and soft there, well not soft but spongy. She didn't want to hurt her brother though, so she never properly gripped anything. Mostly pokes and prods.

She noticed her brother's entire mood shift, it was like she was holding his weakest bit. He had no fight in him when she held it, no resistance whatsoever. He told her to stop, but never once did anything to get her to! Not like with the pictures earlier when she had to out smart him, no she has him in her hands, literally.

Vanny didn't understand masturbation at all, not at her age and so luckily for Jamie, he wasn't going to be jerked off to show his final secret to her. Though he couldn't deny that her touching was feeling so good that he may end up not being able to hold it in! His breaths were becoming hasty, erratic.

Vanny remained squeezing, squeezing until.

“Oh ewwww did you go pee pee?” Vanny exclaimed, raising her hand, a clear string of fluid between two of her fingers, raising them to Jamie's face!

“Noo, that's not pee, that's just something it does when it's touched!” Jamie responded.

“Oh, ok!” She placed her hand right back and began to move it this time to test the slipperiness of the tip and to her amazement, it really was!

She began to unknowingly jerk her big brother's big cock, much to Jamie's dismay. Jamie wasn't sure how much longer he could survive but luckily for him, with nothing changing in the situation Vanny got bored and wanted to wash her hands, and Jamie's slippery weewee.

Jamie was dragged to the bathroom with his upright ‘weewee’ which was twitching, throbbing and oozing at this point. No longer the bright pink color at its tip, no it was now a slightly darker tone.

Vanessa positioned the boy and his boner above the sink and started to rinse it, put a little bit of soap on her hand and begin to tug at it again. Instantaneously she noticed the way Jamie's muscles tightened as his body grew as stiff as his ‘weewee’. Oh this was so much fun, shame she was going to send him back to his room, maybe she'd try something next time mom was out!

She dried her brother off and told him he could go back to his room, much to Jamie's excitement, he was absolutely begging for a reason to run away, to get changed and escape the situation and she had finally given it to him.

Unfortunately for Jamie, the door bell rang, followed by a couple bangs on the door.

Vanny, who had finished playing with her brother, began to smile, perhaps the day wasn't over. Perhaps there was more to come?

She grabbed Jamie by the cock and began to bring him to the door, reveling in the way it twitched in her small hand!

Hidden from the outside world, Vanny peeked through the door hole before pulling back and showing off a smile that stretched along her face. Oh this was not going to be good, Jamie began to feel his heart beat quicken as he heard her say.

“Go on Jamie, open the door, nakie!” Vanny cackled.

“B-b-But you said I could-”

“No no Jamie! Open the door and show your hard weewee! I have the picssssssss!”

*gulp*

[Jeepman89]

Fantastic chapter, Marble! I love Vanny's innocence in playing with her brother's big dick. I wonder who is at the door! He has to answer it bare naked too. This should be good.

[TeenFan]

Little Vanny is getting an early lesson in male anatomy. At some point big brother won't be available, and Vanny will have to check out the
schoolmates...but she'll probably be disappointed at seeing what boys her age have to offer. I suspect she'll be hooked on seeing older boys
naked.