Note: This story was dynamically reformatted for online reading convenience.
 
 This is a work of fiction - pure fantasy.  It is intended solely for adult
audiences.  If you are under the age of 18 please do not read.

   Chapter 6

   Luke couldn't believe these words coming from his sister.  Did she mean
it?  Had she done it before?  He pulled his cock from her dripping pussy
and slid it up and down between her ass cheeks.

   "Are you sure that's what you want?"

   "Yes dammit.  I want your cock in my ass.  Pleeeeese."

   Luke dribbled spit down her crack and over his cock.  He pressed his
knob against her sphincter.  She was really tight and he was having a hard
time getting it inside.  Annie was determined and pushed back against him.
It felt so big.  Maybe he would rip her apart.  No, she thought, if Nancy
Sterling could do it then so can I.  She gritted her teeth and renewed the
effort.

   "Here.  Maybe this will help."

   Debbie was standing next to him with a bottle of baby oil in her hand.
She didn't know anything about ass fucking but she was sure that a lot of
lubrication had to be involved.  It wasn't like a pussy that had its own
lubrication.  Debbie was excited about watching.  She wanted to see how it
was done because Debbie was going to try it that way herself.  She wanted
to know what it felt like to have a cock up her ass.

   Luke doused his cock with baby oil and applied some to his sister's
asshole using his fingers.  He guided his swollen knob to her sphincter and
pushed.  This time he felt her yield.  Annie yelped when his mushroom
shaped crown punched through her tight ring.  Debbie stood there with her
mouth agape as she watched more and more of his cock slide into Annie's
body.  It turned her on.  She put a hand between her legs and rubbed her
throbbing clit.

   Annie grimaced.  It was so big.  She bit her lip to fend off the pain as
his throbbing meat pushed deeper into her bowels.  She was determined to
take it...  all of it.  Luke went slowly stopping occasionally to let Annie
adjust.  She finally realized that if she relaxed and pushed out rather
than clench the pain was bearable.  She felt the last few inches slide into
her body.  The pressure was incredible but she had done it.  She had a cock
up her ass.

   Luke looked down between his sister's cheeks and saw his throbbing
member buried deep in her asshole.  God she was tight.  He gave her a
moment to adjust before he slowly pulled out and pushed back in a little at
a time.  He felt Debbie's body pressed against his and realized that she
was watching just as intently as he was.  And she was fingering her pussy.
Debbie looked up.  Their eyes met.

   "I want you to fuck me in the ass too," Debbie whispered.  "After you
finish with Annie."

   Debbie buried her face in his arm and shuddered.  The image of his cock
deep in her ass had caused her pussy to clench.  She could feel a bead of
cunt juice trickle down her thigh.  When she opened her eyes she could see
that Luke was fucking Annie's ass with longer deeper strokes.  She kept her
eyes glued to his vein-streaked shaft as it plunged into her friend's body
again and again.  Her pussy clenched and released another trickle of cum.

   The unbearable pressure in Annie's ass slowly gave way to a throbbing
feeling of pleasure.  She was getting ass fucked...  ass fucked by her
brother.  The forbidden nature of these acts was exciting.  Juices were
gathering in her pussy.  Annie slid a hand between her legs and pushed two
fingers up her steamy fuck hole.  She could feel his cock plunging into her
ass through the walls of her cunt.

   "Oh god yes...  fuck my ass.  I love your cock in my ass."

   Her fingers pumped in and out of her pussy in sych with his thrusts into
her asshole.  She felt like a whore.  She wanted to be his whore...  his
ass fucking whore.  Juices were pouring from her cunt and trickling down
her thighs.  Annie moved a fingertip to her throbbing clit.  She closed her
eyes and concentrated on the hard cock plunging in and out of her asshole.
Her legs were shaking.  Her body stiffened.  Her pussy exploded.  She
screamed.

   Luke continued to plow his cock into his sister's asshole.  Debbie
climbed onto the bed next to Annie's trembling body.  She got on her back
and pulled her legs back.  Using the baby oil Debbie pushed a finger into
her asshole.  Annie screamed with another orgasm.  Debbie pushed a second
finger into her body.  God it was tight.  The pressure was almost
unbearable and her two fingers weren't even half the size of Luke's cock.

   Luke pulled his cock out of Annie's asshole and looked over at Debbie.
She had two fingers buried in her asshole.  His cock was still hard when he
moved over in front of her and doused it with more baby oil.  Debbie pulled
her fingers out and felt the huge knob of his cock press against her
sphincter.  She stiffened and yelped when he began to push.

   "Are you sure you want me to do this?" Luke asked.

   "Yes," Debbie stammered.  "I can do this.  I can."

   Luke poured more baby oil onto his cock and over her asshole.  Debbie
felt his tip wedge into her hole.  She clenched her fists and prepared to
have her asshole ripped apart.  He continued to pry it open against her
resistance.  She screamed when the rim of his crown popped through her
tight anus.  She opened her eyes and saw Annie leaning over her and
stroking her hair.

   "Relax," Annie told Debbie in a soothing voice.  "You can't fight it or
it won't work.  Concentrate right here.  It'll make it easier."

   Annie slid a hand between Debbie's legs and rubbed her clit.  Debbie
tried to concentrate on her friend's fingers but it was impossible not to
feel the huge pressure in her bowels.  Luke slowly inched his cock deeper
and deeper.  The pain was intense.  She did her best to concentrate on
Annie's finger rubbing her clit.  Ohmygod, she thought, I'm getting
fingered by another girl.  I'm getting fingered by a girl and fucked in the
ass.  I love it.

   The pain turned to intense pressure as he filled her bowels with his
swollen meat until he was completely buried.  She had a cock up her ass and
she wasn't going to die.  She was going to get fucked in the ass.  Debbie
pulled her legs back further as he began to move in and out of her tight
sphincter.  Annie's fingers were flying across her clit.  She looked up at
her friend.  Their eyes locked.  Annie kissed Debbie on the lips.  Their
mouth's opened and their tongues mingled.

   Annie curled two fingers into Debbie's pussy fucking them in and out
while Luke continued to hammer her ass.  Everything was spinning out of
control.  Debbie felt so dirty and nasty getting fucked in the ass and
kissing a girl and getting finger-fucked all at the same time.  Her pussy
was throbbing.  The cock in her ass plowed deep into her bowels again and
again sending waves of forbidden pleasure through her body.

   Annie pulled up Debbie's top and sucked a swollen nipple into her mouth.
Her fingers were making loud squishing sounds as they continued to pump in
and out of Debbie's cunt.  Debbie closed her eyes and bit her lips.  Her
head was spinning from all the sensations shooting through her body.  She
loved having a cock up her ass.  It felt so deep and hard and alive.  And
her best friend was sucking her nipple and fingering her pussy.

   Debbie could feel the strength of the orgasm that was going to explode
from her body at any moment.  She dug her fingers into the bedspread to
hold on for dear life.  Her body stiffened.  She threw her head back and
gasped for air.  Luke's cock plowed deep into her asshole again and again.
It was so big.  It was so hard.

   "AAAAAHHHHHHHHHEEEEE...  UUUUNNNGGGHHHHH..."

   Cunt juice sprayed against Annie's hand and thrusting fingers.  Debbie
jerked and thrashed uncontrollably on the bed.  Her legs flailed aimless in
the air.  Wave after wave of powerful spasms gripped her body.  She felt
something warm and wet flick across her clit.  Annie was licking her. 
Another violent explosion sent Debbie spinning into another dimension. 
Luke pulled out of her asshole.  Annie swung her leg over Debbie's head and
lowered her pussy to her face.

   Debbie slowly recovered and realized that something was tickling her
lips.  It was the curly hair covering a...  a pussy.  Not just any pussy.
It was Annie's pussy.  Not only that, but Annie was licking Debbie's
throbbing cunt.  Debbie wasn't a lesbian.  Annie wasn't either.  What was
going on she wondered?  Then she saw Luke's hard cock slide between
Debbie's ass cheeks and press against her sphincter.  He was going to fuck
her in the ass...  again.

   Debbie watched Luke's cock disappear into his sister's tight asshole. 
She also saw Annie's pussy up close.  The glistening lips of her pink folds
were spread open and peeking out through her gash in a forest of light
brown curls.  A swollen clit hung down like a tiny penis poking out from
its hood.  The smell of Annie's pussy was strong and intoxicating.  Debbie
shot out her tongue and flicked it across Annie's love button.

   When she felt Luke slide into her asshole Annie lifted her face from
between Debbie's legs and gasped.  Cunt juice was smeared across her lips
and was dripping from her chin.  She still didn't know why she had licked
her friend like she did.  It just felt right at the time.  She wanted
Debbie to return the favor.  She bit her lip when she felt Debbie's tongue
flick across her clit.  Ohmygod, she thought, I'm going to lose it.

   Luke could feel his balls filling with cum as he slammed his cock in and
out of his sister's tight asshole.  He could feel his balls bouncing off
Debbie's nose.  Debbie was eating her pussy.  His sister was eating
Debbie's pussy.  Nothing like this had ever happened to him.  He looked
down at his cock sliding in and out between his sister's cheeks.  His
sister screamed.  Her body shook as one spasm after the next gushed from
her pussy.

   Debbie drank Annie's cum which was squirting into her mouth almost like
she was peeing.  She watched Luke's cock repeatedly slam into Annie's
asshole.  Her head was spinning with lust.  Everything seemed so surreal.
She moved her mouth to Luke's balls and sucked them into her mouth.  They
were swollen with cum.  Her tongue swirled around one and then the other.
She heard Luke groan and felt his balls tighten.

   Luke pulled his throbbing shaft from his sister's asshole and aimed it
between his sister's thighs.  A powerful stream of cum surged up its length
causing his cock to swell even bigger.  His hot seed exploded from the tip
and splashed against Annie's pussy.  Another blast hit her directly on the
clit.  Annie screamed as another orgasm gushed from her pussy.  Cum and
cunt juice dripped down onto Debbie's face.

   Luke aimed his cock between Debbie's eyes and pumped the last few spurts
all over her face and hair.  Debbie lifted her head and licked the cum
still oozing down Annie's slit.  After catching her breath Annie spun
around on top of Debbie.  She scooped the cum from Debbie's face and fed it
to her with her fingers.  Then they kissed.  Annie slipped a hand between
Debbie's legs.  Debbie did the same to Annie.  They rubbed each other to
another orgasm.

   Luke was gone when the two girls finally separated.  They looked at each
other and smiled.  They knew that their lives were changed forever.