Note: This story was dynamically reformatted for online reading convenience.
 
 Story Codes: inc mast panties

   NOTE THE FIRST STORY CODE.  This story series revolves around consensual
sex between adult members of the same family.  If that bothers you, you
should stop reading now.

   Language notes: Occasionally I use Korean words here where I feel it
captures the feelings better.  Here are the translations for words used in
this story.  Oppa: Older brother Jal ga!: Bye!  Pyeontae: Pervert

   Minjun grunted as the silky, navy panties stretched tight across the tip
of his cock turned a wet midnight with white cream pushing through to
dribble down the fabric and his hand onto the floor.  It had been 3 weeks
since the first time he'd discovered his sister's panties.  And it seemed
like ever since then, he'd been living in a world of lace and silk, navys
and reds.  Within a few days, he had figured out a routine that gave him a
fresh pair of panties each day to jack off with.  The first few times had
been new ones, but he'd become worried she would notice that she was going
through panties twice as fast as she was wearing them and, as soon as he
realized she changed her panties before she went to the bathroom for her
morning shower, he switched to grabbing the used pair from the night
before.

   Now, it felt even dirtier.  He masturbated with them and then hid them
in the bottom drawer of his desk, washing them with the towels and his
clothes about every 3 days.  There was a little smell, but he sprayed the
drawer with cologne each time.  She'd commented on him doing the laundry
more, but not negatively.  And he'd managed to perfect drying them to
where, by wringing them out wrapped up in a dry towel, they could go from
washed to sitting in her clothes hamper almost completely dry in 5 minutes.
It was perfect and there was no way she suspected it, he thought smiling at
the last puff of cologne.

   Good thing, too.  She'd become even more casual with her clothing these
days.  If he didn't know any better, he'd say she was trying to flash him!

   He shook himself, "Stop Minjun.  She's not a pervert like you." He
opened his door and grabbed his backpack off the table.

   "I'm off to class, Jieun!  Have a good day!"

   "Oppa, Jal ga!" Jieun sang, turning on the aegyo that had twice gotten
her a few hours in a love motel since coming to Seoul 5 weeks ago.  She
thought back to the fumbling awkwardness, the off-putting 'foreplay', and
the boys' self-satisfied smiles as they donned their pants without having
once touched her like she touched herself at home.  Fortunately for her,
though the guys weren't that good at touching, she was perfecting the art.
She pulled the longish shirt she'd been wearing over her head and tossed it
aside before walking naked into her brother's room.  The stench of cologne
hit her, it was laundry day so he must have needed an extra puff or two to
conceal the smell from the last two days.  She slid the drawer open and
looked down at the panties accumulated in the bottom drawer.  The green
thong that had started it all was there, as well as her all-lace white
pair. But she was after the silky navy pair with thin, sky-blue tracings of
flowers on the front.  She brought them close to her nose and inhaled.  The
cologne was strong, but nothing could overpower the smell of sex up close.

   "Oppa," it sounded almost animal as her finger slipped into her pussy
and pushed the words from her lips.  Today was Wednesday, she had no
classes till lunch.  And she intended to take her time.

   -

   Minjun patted his pocket as the bus approached the stop.  "Damn!" he
said, louder than he'd intended from the stares of his fellow commuters. 
My wallet must still be on the desk.  If he ran back, he could catch the
other bus, it took longer but he probably wouldn't be late for class.  He
turned up the hill towards their apartment and started a light jog.

   -

   Jieun laid back against her brother's bed, moaning through the green
thong she was sucking on.  She used to think he waited till night to
masturbate, and she'd imagined him laid on the bed, hips bucking like the
boy she'd jacked off just the day after she'd found the mess Minjun had
left in her room.  But the thick, fresh remnants she found each morning
suggested otherwise.  She still couldn't believe he thought he was getting
away with this.  Did he think she'd dispensed with bras and bottoms around
the house because of comfort?  Much as she loved being naked, it was hardly
comfortable to try to "accidentally" flash her brother without him knowing
it was hardly accidental.  And the panties?  Surely he didn't think his
"I'll do the laundry" ploy was that opaque a defense.  Did he think she
hadn't noticed that all her underwear disappeared from her laundry basket
only to return 3 days later, slightly damp and right after her brother did
the laundry?

   She paused to switch the thong and the navy panties, taking care to
ensure the wettest part lay across her tongue, before returning to trailing
her vibrator gently across her nipples.  Her head rolled back as the tiny,
white egg slipped down her stomach and traced the edges of her wild bush.

   BEEP.  BEEP.  BEEP.  BEEP.

   The beeps snapped her to the present as she struggled to stand before
the apartment door opened.  She was 2/3rds of the way up when the final
tone sounded and the door opened to reveal her brother.  "Sorry, I forgot
my...  HOLY SHIT!"

   Minjun stood frozen in the doorway, his backpack clattered to the ground
beside him.  Jieun held the flimsy thong in front of her chest with her
left hand while her right cupped her crotch, the still vibrating egg
pressed against her left thigh.

   Regaining his wits, Minjun pulled the door closed.  "Jieun, what the
hell are you doing in my room?!" He looked at her, trying hard to just look
at her and not LOOK at her.

   "What the hell were you doing with these?!" She retorted, dropping the
vibrator to the floor to take the panties from her mouth and holding up the
green and blue panties while nodding her head towards the white ones on the
floor.  "What, did you think I didn't notice how my panties all went on a
mysterious 3 day vacation after every time I wore them?"

   She saw how his eyes darted to take her in.  "Cover yourself" ran
through her head, but another, more sensual voice was there too.

   The rising panic in Minjun's chest competed with another, more physical
rising a little further south.  She seemed a little angry, but not nearly
as angry as he'd expected.  And the white thing rattling on the floor was
definitely a vibrator.  What was going on here?

   She noticed the rise in his pants as well and pushed forward.  "I
thought to myself this morning, 'You know what would go perfectly with this
skirt?  My green thong.  But where did it go?' So I searched the house
until I found your little stash.  I figured you were jacking off to them,
but didn't think you'd be jacking off WITH them!  Pyeontae." She paused at
the door to his room and stretched her arm up against the frame in a sexy
pose, "Do you cum harder now that you use the dirty ones?  Or did you just
switch in the hopes I wouldn't notice."

   Desire and revulsion fought within Minjun as he drank in her slender
form.

   She'd had the blue panties in her mouth when he came in, clearly she
wasn't looking for the green ones.  This is Jieun.  She knew about this
almost as soon as I started and didn't say anything, that means she's ok
with it.  This is Jieun.  God, she looks so hot.  Look at her nipples. 
This is Jieun.  I want to fuck her.  This is your sister.  I'm fucking her.

   He stepped out of his shoes and into the room.  "I'm sorry, you're too
sexy.  I can't resist." He shrugged his coat from his shoulders.

   "It's not nice to take a girl's panties to use as your cum rag." She
waved the navy panties in front of her.  "These were expensive, if they're
going to get used up, I want to get something out of them." Her tongue
flicked the panties suggestively.

   His sweater dropped to the floor.  "Seems to me you have been getting
something out of them.  Or did you have something else in mind."

   The thong dropped to the ground in time with his shirt, "A girl expects
that when there's cum on her panties, there's also cum some other places.
And I don't mean the front of her dresser."

   He pushed his jeans to the floor.  "I'm afraid you're going to have to
be more specific, sis.  Where else would you like me to cum besides in your
panties." He stopped at arms reach, his eyes roaming from her pert, eraser
nipples to the pink of her slit just visible below her tightly trimmed
bush. One last time, a corner of his brain screamed at him, "This is your
sister!  You have no protection."

   She looked down at the large bulge in his underwear.  The gray
cotton-covered erection reminded her of the one she'd unwrapped just last
week.  Except that one had erupted in his underwear the second her hand had
brushed his cock.  "Typical man.  Well, I guess I'll just have to show
you." She gestured over her shoulder.  "But not in there, it smells like a
cologne factory."

   "I don't have a condom." The softening of his voice matched the
softening in his pants.

   Her lips and body pressed against his, and he could taste a salty hint
of his cum on her tongue as it wormed its way into his mouth.  She shifted
left to drag her wet clit along the length of his erection, stiffening it
as she went.  Their eyes locked.  "You can't wear a condom if you're
supposed to be getting cum on me and my panties, silly." And with that they
kissed again as she led him into her bedroom.

   His hands played along her body as they neared her bed when she broke
the kiss a second time.  "Go pick your favorite pair, you know where they
are." She sat down and spread her leg wide, "I'll be waiting just like this
in case you need a little inspiration." Jieun's hand draped delicately
across her stomach and began slowly circling her clit.

   Minjun looked at her spread legs, back to the door, and then back to his
sister.  "It's not polite to keep a girl waiting, Oppa."

   He turned and dashed towards the door and she sat up, "Ya!  What the
fu---" She paused as he turned back at the door with the green thong.

   "You said get my favorite."

   "Ah, pyeontae.  You've already cam in those.  I know it was 2 days ago,
but still."

   He bent back down, "At least I didn't pick my second favorite." she
smiled at the pair from this morning in his other hand.

   "You're a dirty boy, oppa."

   "Weren't you just sucking my cum out of these panties a few minutes
ago?"

   Her gesturing fingers drew him in and he dropped the navy pair and the
green thong on her stomach.  "You can choose."

   She shuffled the navy pair away and slipped the thong on.  Most of the
fabric was still a little damp from being in her mouth earlier that
morning. She gasped as the cool dampness touched her warm slit.

   "Are you OK?" She looked up into his eyes and saw love.  When her first
lover had said that, he was concerned about 1 thing: Cumming in a sock
tonight instead of her pussy.  But her brother was concerned about her.

   She sat up and pressed her nose into his chest, hugging him tightly. 
"No, you're wearing your underwear still." She quickly slid his gray boxer
briefs down to his knees.  "You're not going to cum as soon as I think
about touching you, are you?"

   Minjun looked down at her.  "I just came 20 minutes ago, it's OK."

   She nodded and scooted back on the bed.  "OK, then bring that cock over
here and let me show you how I want you cumming on my panties from now on."

   He crawled between her legs and she grabbed his erection.  It was quite
a bit longer than she remembered the others, but not quite as thick.  She
might have trouble getting her brother all the way into her, but that was
for later.  "Before you cum on my panties, you've got to earn it.  You've
been getting your rocks off for free this whole month, but no more.  I have
to cum before you, or we never do this again."

   He slid on top of her and kissed her full on the mouth as he rolled her
pert nipple between his fingers.  Her back arched and she rolled her head
to the side as she moaned.  His lips and tongue trailed down her neck and
shoulders until they reached her breasts and he sucked her nipple into his
mouth, drawing out a breathy grunt with each flick of his tongue.  With one
hand, she pressed his head tightly to her chest while her other rubbed her
clit furiously through the increasingly wet fabric of her thong.

   Minjun shifted and traced his hand down stomach.  He twisted his neck
slightly so he could follow with his eyes and and paused briefly as his
fingers grazed the waistband of her panties.  For over a month, he had been
trying to steal glimpses of her panties.  Now, here they were on display.
The fabric bunched and stretched in time to the quick movement of her
fingers grinding against her clit.  The hand behind his head released its
grip and lifted the waistband.  The wetness between the fabric and trimmed
brown hairs left several strands of clear juice shillouetted against the
wet green of the gusset, still moving quickly as her hand slid lower to
play with the entrance to her pussy.

   He needed no invitation, his hand shot inside the green tent and he let
his middle finger come to rest inside her slit, rolling it slightly to
moisten it before curling up to press against her clit.

   "Fuuuuck!" The band snapped down on his wrist as she let go of it to
grab his ass.  With each flick of the finger, her world shrank.  His tongue
and fingers worked in sync and her muscles twitched as he played.  Her hand
cupped his through the panties, pressing it close as she pulled his ass
down, bringing the tip of his cock to rest against her.  Precum drooled
from it and began to fill her belly button.  Suddenly, his finger darted
down and the tension building within her since her short playtime in the
shower exploded as her pussy seemed to pull his finger deep inside and
clamp down in an uncontrollable orgasm.

   She felt Minjun release her nipple as she bucked wildly under him.  Heat
and electricity seemed to shoot through her, washing out from her vagina in
pulses of sexual release.  Slowly, the waves resided until he began
twitching his finger inside her, triggering a fresh wave of esctasy hot on
the heels of the first.  Her vision narrowed and she clawed at his ass and
the sheets, struggling to anchor herself as her world twitched and twisted
to the muscles in her legs and pussy.

   "Fuck, sis.  Did you cum?" The white cream covering his finger as he
brought it out from inside her panties answered his question long before
she could catch her breath enough to speak.  She slapped his hand as he
licked the finger clean.  "What, you taste delicious."

   "You really are pyeontae."

   "Speaking of which, did your panties taste good this morning?"

   The comment drew another slap, this one to the shoulder, then she
wrapped her fingers around his cock.  "I think it'd taste better straight
from the source." With that, her small mounds wobbled slightly as she
shimmied down till his tip hung just above her chin.  A clear dribble,
almost the same was what flooded her pussy when she was horny, connected
her chin to his dick.  That shot in the videos always looked hot, and it
was even hotter in real life.  She flicked her tongue out to catch another
bead as it slipped from the slit and smiled.  "Looks like I'm right."

   A long, slow grunt filled the room as his cock filled her mouth.  His
mind raced as her tongue and hands teased his already impossibly-hard cock
even harder.  The best blowjob he'd ever had, and it was his sister.  She
rolled his balls between her fingers and he grunted again.  "If you keep
going, I'm going to cum."

   Jieun paused.  It was fun sucking on his cock.  And even now, the steady
stream of salty precum hinted at how delicious it would be if he were to
cum in her mouth like the videos.  But she also wanted his cum on her tits
and panties.  "Sit down." She ordered, releasing him.  Once he was seated
at the edge of the bed, she knelt between his legs and looked up.  "Warn me
before you cum." With that, she descended on his cock and was bobbing up
and down on it, working her hands like she'd seen in the videos.

   Minjun could feel the pressure building in his balls as she milked his
cock.  "I'm going to Cuuuuggghhh." The last word trailed as the first blast
of semen hit the back of her throat.

   She let his cock go with a pop as the second salty strand drew a line
from her lips up to her hair and arched over her head to land between her
feet behind her.  She guided his dick down and milked 8 more thick strands
out onto her tits, smiling as the jizz trickled down to soak into the
waistband of her panties.  He looked at her as she caught the dangling bead
hanging from his cock on her tongue and followed it up to his dick.  "What?
You taste delicious."

   She rose and turned toward her full-length mirror, admiring the coating
she'd received.  "Remember, oppa.  If you want to get cum on my panties,
this is how I want you to do it from now on." She turned back to see his
cock still hard.  "What the hell?  That's twice in an hour.  The others
were finished after just one!"

   BUZZZZ.  The rattle was followed closely by a crash as Minjun's phone
vibrated it's way off the table.  "Fuck!" He rushed over and answered it.

   "Uh, Changhoon."

   "I missed the bus."

   "A pop quiz!?  Shit!  OK, tell Ms.  Angela I'll be there soon and I'm
really sorry." He hung the phone up with a fuck and turned to his sister.
The reality of what he'd done set in as he saw her pouty lips sucking a
glob of jizz of her finger that she'd clearly scooped up from her tits.

   "Fuck, I'm so sorry, sis.  I.  We." Her finger on her lips stopped him.

   "Shut up and go to class.  I'm just a freshman and I know not to miss
Ms. Angela's pop quizzes."

   As her brother hurried out the door 5 minutes later, Jieun still stood
nearly naked.  The cum on her chest that hadn't slid down to stain her
green thong or gotten idly scooped up by her roaming fingers was dry and
flaking.  "I'll have to take another shower before getting ready." she said
to herself as his steps receded down the stairs.  "Totally worth it."
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