
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/7992517.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      Gen
  Fandom:
      Naruto
  Relationship:
      Nawaki_&_Senju_Tsunade
  Character:
      Nawaki_(Naruto), Tsunade_(Naruto), Orochimaru_(Naruto)
  Additional Tags:
      Panty_Sniffing, Masturbation, Caught, Aged-Up_Character(s), Fluff_and
      Angst, Reconciliation, Sibling_Love
  Stats:
      Published: 2016-09-09 Words: 2250
****** Nawaki Is Caught ******
by InnocentPen90
Summary
     Senju Nawaki is in some trouble after being caught masturbating with
     a pair of Tsunade’s panties.
Notes
See the end of the work for notes
 
 
Nawaki of the illustrious Senju clan rolled across the ground and bounced off a
tree. He lay there gasping and panting as his sensei walked up to him. He heard
his sensei tut in displeasure, as the boy righted himself. Nawaki cast a
baleful glare at his unimpressed mentor.
“That…was pathetic.” Came the damning response from Orochimaru. “How is it your
sister managed those taijutsu sequences at the age of ten, when you more than 4
years older than that can’t?”
Nawaki growled. He hated being compared to perfect princess Tsunade.
“Whatever.” He got up and stalked away.
“We’re not done here boy!” Orochimaru called after him.
“Tch.” The genin directed an unflattering sign at his sensei and continued on.
It was a turbulent time for the young teen. The 2nd Shinobi War was in full
swing and here he was being held back, unable to contribute to Konoha’s
efforts, because he was deemed incompetent. Or so that’s what he told himself.
He entered his home and removed of his sandals. All that mattered now was a
shower to soothe away the ass kicking that snake faced fucker gave him. He
ached from head to toe.
After washing up and making use of the massage function of his showerhead, he
stepped out of his tub and dried off. Nawaki was just about to drop his used
clothes in the hamper when something pink caught his attention.
Digging in he pulled the item out. He blushed brightly, thanking the kami
nobody saw him with a pair of his sister’s panties in his hand.
Before Nawaki knew it, he’d brought the crotch of her panties up to his nose
and inhaled deeply. He was almost dizzy at the musk of his sister, and it
brought his erection to life almost instantly. He grasped his prick stroking.
He knew he was a sick fuck for doing this, but this aroused him like nothing
else on earth.
He knew his sister was hot, not only did she have the biggest chest in town,
something he’d fantasised about touching in recent years, but she was such a
tease, walking around the house half naked in just a tank top and underwear.
Surprisingly he’d never looked twice until today.
Perverted thoughts like,I’m smelling my sister’s pussy and I wish I could smell
her scent straight from the source coursed through his mind. He wrapped
Tsunade’s panties over his cock and began to jerk off faster, an image of his
sister pulling off those panties, baring her pussy shot through his mind and
Nawaki started cumming into the underwear.
He panted,that…that was fucking insane… The fourteen year old wiped the last
drops of semen from his slit and dropped the panties back in the hamper before
exiting the bathroom
 
===============================================================================
 
 From then on, it was a frequent past time of his, he’d fish out a used pair,
race to his room, lock the door and place the garment over his cock. He’d long
since discovered he liked her silk panties more than the softer cotton ones, as
the smooth material seemed to glide over his cock head.
He became obsessed, every time he saw his sister walk around the house, he
dreamed of sliding his cock between her thighs and painting them white with his
cum. He popped an almost constant boner nowadays.
He started doing the laundry, keen to hide the evidence of his activities, he
didn’t ever want to find out what would happen if Tsunade found a pair of her
underwear wet with his cum. Just thinking about the scenario made shivers go
down his back.
His sister’s tolerance towards perverts was well known. It was a common
occurrence to hear a high pitched scream and see her old genin teammate soaring
over buildings after the white haired guy said or did something incredibly
perverted. He never seemed to learn either, Jiraiya took pride in being a self-
proclaimed “Super Pervert”.
Nawaki often wondered how the older teen managed to avoid permanent disability
or death at Tsunade’s hands. He could only conclude the man was either made out
of chakra metal or his sister held some affection for Jiraiya and for some
reason held back.
Nawaki didn’t think she’d hold back for an annoying younger brother. No matter
all he wanted was her approval. Though if I want her approval, this new habit
of mine is sure as hell not gonna get it. More like eternal condemnation and a
swift heel up the rear to aid me onto the frontlines of Iwa.
He started musing that Tsunade could start her own transport company if the
customers could stand the pain. He doubted many others were as hardy as
Jiraiya.
But of course, knowing about the danger didn’t mean he was discouraged from his
masturbatory activities. It was a potential side effect of course, but he was
too busy getting his rocks off to even give it much mind before, during and
after said activities. He knew the consequences, he just didn’t care in favour
of having a bit of fun. Just like any other teenager really.
 
 
===============================================================================
 
He really should have thought about them.
That day, as soon as his sister had left the house, he had as usual raced to
the hamper and pulled out a pair. It was his favourite ones, the pink pair from
the day he started.
Lying back on his bed, he started thinking of what happened last night.
Tsunade came home after a date with Dan. He’d been sitting on the couch
watching some anime or another when, she walked out of the room and went to
change the channel. As she bent over, he saw her shapely ass, and more
importantly, the camel toe that formed. He was delighted to see the materials
pressed in, highlighting the contours of Tsunade’s lips.
Not only that, they were damp, the material a darker colour there. Seemed as if
Tsunade had been up to something during her date. Nawaki just sat there,
delighting in the show his sister was unintentionally giving him.
As the boy reminisced he started the familiar act of placing Tsunade’s panties
on his cock and started stroking his manhood at a fevered pace, Nawaki was
fucking the spot on her panties where her pussy juice dried and the genin
wished that he had caused it.
Just then the door flew open and Tsunade stood there asking, “Hey Nawaki, have
you seen my spare brace of Kunai, I have to leave for a mission.” As he was
just on the edge, Nawaki gave a loud groan and thrust his cock hard into the
material before he began to fill the panties with his semen.
As his senses came to him, he felt a dawning sense of horror staring up at his
sister.
“What-what the hell are you doing? A-are those my panties you sick fuck!”
Tsunade screamed at him.
Nawaki scrambled off the bed, “Tsunade, shit, shit, shit!”
“Gimme em’ back you bastard!” She walked over to him and pinched it with two
fingers, yanking it of his shrivelled cock harshly, staring at it in disgust.
She glared at him. “Jiraiya I can understand, but you? It’s like I don’t know
my own brother. I have to go for my mission, but we will talk about this when I
get back.”
She shook her head and gave a disappointed glare before stalking out of the
room, slamming the door behind her so harshly, the frame and wall surrounding
it cracked, sixty year old Mokuton wood no match for her anger.
Nawaki, just sat on his bed and started to cry, wondering what he was going to
do now.
 
===============================================================================
 
The days went past with Nawaki, dreading Tsunade’s eventual return. He knew
when she did, their relationship would never be the same again. He also didn’t
want to have the highly humiliating conversation about his unauthorised,
unwanted and unhealthy use of her underwear. He passed his days moping around
the house, avoiding her room entirely in case he fell to his urges and rummaged
through her drawers for something to wank in.
He didn’t even have the benefit of training as Orochimaru had departed on the
same mission that Tsunade was on. He made and discarded plans of running away.
He even contemplated thoughts of suicide, such was his shame.
The worst part was he hadn’t received a single letter from her, where before
she always made sure to send at least one.
He made his sister hate him.
I am such a fucking idiot.
 
===============================================================================
 
 It was two months later that Nawaki opened the house door, clutching a bag of
groceries when his heart dropped to rest somewhere near his stomach. His
sister’s sandals were sitting there. Tsunade had returned. Gulping, he shut the
door and made his way to the kitchen. He made an effort to put the groceries
away as quietly as possible, hoping against hope that he’d be able to avoid
seeing her.
Suddenly he was grabbed around the middle and hoisted in the air, “Boo!”
Nawaki screamed in shock sending a bag of apples flying across the kitchen.
Tsunade twirled him around before setting him on his feet, doubled over in
laughter.
“Y-your voice, I didn’t know you could go so high, you should try out for the
choir Nawaki!” She said, wiping the tears from her eyes. Her laughter slowed
when she noticed Nawaki was staring at the floor.
“What’s wrong Nawaki?” His sister queried. Her brother was acting rather oddly.
“Nothing.” He mumbled before picking up the scattered fruit, putting them in
place before brushing past his sister and shutting himself inside his room. He
lay on his bed staring at the ceiling before he heard a knock on his door.
“Nawaki? Can I come in?” Tsunade said.
He didn’t answer, but the doorknob turned and his sister peered around the
door, before opening it and entering the room.
“Are you ok Nawaki? I didn’t mean to make fun of you just now.” She said
sitting on the side of his bed, running a hand through his hair.
“Not upset about’ that.” He whispered.
“Then what?” Nawaki blushed and turned on his side, trying to avoid looking at
his sister.
“C’mon Nawaki, I can’t help if you don’t tell me what’s wrong.”
“What’s wrong is me!” Nawaki said.
Tsunade had enough and gripping his shoulder, pulled him onto his back, she
gripped his chin and turned it so he would meet her eyes.
“Are you talking about…?” she asked cautiously.
“You know I am. Why are you even pretending I don’t sicken you?” Nawaki
whispered, speaking through the lump in his throat.
“Nawaki!” Tsunade was absolutely shocked he would say something like that.
“You know it’s.” Nawaki looked up at his older sister, tears brimming in his
eyes. “You wouldn’t even write me.”
Tsunade gasped. She immediately bundled him into a tight hug.
“Oh no! Nawaki, I’m sorry! It’s not that I hate you, I couldn’t hate you ever!
This mission, the reason I didn’t write was that there was a spy in our forces.
Sarutobi-sensei instituted an information blackout for the first time. No
letters in and no letters out, in case they were intercepted by the enemy.
That’s why I couldn’t write you.” She explained running a hand down his back.
He broke the hug, and looked up at her with vulnerable eyes, wiping a tear.
“You’re serious right? You didn’t not write because of that?”
“That?” Tsunade looked at her brother in slight confusion.
Nawaki looked down, unable to look her in the eyes and said in a trembling
voice, “The day you left, when you caught me with…?”
His voice trailed off unable to complete. He heard a quick inhale of breath as
Tsunade realised what he was talking about.
Tsunade was shaking her head, “No! Oh Nawaki, yes I was angry, because of what
you did. I won’t deny it. I was furious. But, I thought it over and talked to
Jiraiya and Orochimaru.”
Nawaki squawked and looked at his sister in mortification. His sensei and the
idiot knew?!
Tsunade smiled, ruffling his hair. “Yes I talked to them. No they won’t judge
you and having talked to them neither will I. You’re becoming a young man
Nawaki, and I didn’t realise that. You were going to have urges and thoughts
that you shouldn’t have. I didn’t help the situation by prancing around half
dressed like I was.”
A silence fell upon them.
Tsunade reached out and grabbed his hand. “I want you to know, I forgive you
ok? I can tell you’ve been beating yourself up about it. Why you’ve lost so
much weight, I almost didn’t recognise you. I forgive you, but you have to
forgive yourself to ok?”
She grunted as Nawaki threw himself into her arms, crying in relief. Tsunade
rested her chin on his head making comforting sounds. After a while, after he’d
cried himself out, she took his chin and looked at him sternly.
“I forgive you, but you have to promise me you’ll not do something like that
again.” she said
Nawaki shook his head wildly, “Never nee-chan, I promise!”
She gave a short laugh at his enthusiasm, before getting off the bed.
“Ok Nawaki, I believe you. Go get washed up, I got your favourite takeaway for
dinner.” She said before smiling at him and leaving the room.
Nawaki gave a whoop before running out of the room.
End Notes
     This was originally going to end up in an incestuous relationship but
     by the time I came out of my writing daze this was the result and I'm
     pretty happy it turned out this way.
     Note: Nawaki was 12 when he died so I aged him up to fourteen to fit
     plot.
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