I must admit that I was getting a rise, as sluggish 
and slightly painful as it was after my orgasm, out of 
watching my fiance manhandle her sister into what 
promised to be another interesting bondage position.  She 
wasn't having much trouble, either.  Not only was Tammy 
exhausted, Tasha topped her by almost 6 inches.  At 5'7", 
Tasha was a big girl, and had started lifting weights over a 
year ago in a (so far) futile attempt to become stronger than 
I am.  With full hips and busom, a narrow waist, great, firm 
legs and beautiful features, she was a sex goddess.  Her 
sister, on the other hand, was her complete opposite in 
everything but her beauty.
	Slender, firm legs led to narrow hips and small, 
firm, round ass.  Her waist was so small I could probably 
encircle it with my hands, and even her ribcage was narrow.  
Her breasts, although not large, looked so on her tiny frame, 
and pushed out provocatively from whatever she wore.  Her 
face had a look of youth about it--a smooth oval with full, 
red lips, a delicate nose, large, asian eyes, and a 
continuously pouty expression.
	It always amazed me that two such ugly people as 
their parents could pop out two such gorgeous females.  I 
shook my head with my thoughts as I began gently stroking 
myself back to hardness.  Tasha was done now and was 
standing back to admire her handiwork.
	"Nice job," I said, standing up and taking in the full 
view.  Tammy was standing, her ankles spread almost three 
feet apart by a heavy steel spreader bar which rested on the 
floor between her feet.  Her knees were locked straight by 
padded black steel cuffs, seperating the line from her calves 
to her thighs.  Her forearms were looped together as close as 
could be managed behind her back and pulled up, the rope 
around them tied to yet another convenient overhead beam, 
forcing her to bend over at her waist, her head slightly 
lower than her small, firm, round ass, which was lewdly 
displayed for my enjoyment and, it became apparent to me, 
her punishment.  Tasha had removed the clips I had attached 
to Tammy's nipples, and now her breasts hung heavy from 
her chest, her small nipples hard and aching from the blood 
returning to them.  Her long black hair was pulled back and 
tied around the rope which pulled up her arms, pulling her 
head back forcefully so that she was looking straight 
forward, her jaws spread wide by her gag, and her eyes 
frightened by what was happening to her.
	"Sit back down, lover boy,"  Tasha snapped at me as I 
stood, so I did.  "This bitch has to pay for destroying my 
nice comforter.  Stupid slut," she spat, slapping her sister 
hard on her bare ass.  With that she walked over to our 
closet and stepped inside.  Half a minute later she 
reappeared holding what I affectionately named "the 
slapper".  It was a homemade whip, of sorts.  It was made out 
of a single piece of thin leather about six inches wide and 
four feet long.  The top 10 to 12 inches of the leather had 
been spliced into three parts and wrapped around a wooden 
dowel, being tied in a knot at the end and soaked until it 
shrank around the dowel.
	"The slapper" was actually one of our favorite toys:  
it really didn't hurt that much if you were slapped with it 
(although it did take some time to avoid hitting each other 
with the edge of the damn thing), but after a few minutes, 
you were on fire, and each blow was true agony.  It didn't 
leave any lasting marks either, although it did turn flesh to 
a beautiful shade of red.  The great thing about it was that 
you could custom the level of agony you inflicted by 
altering the number of blows.
	<WHAP> the first blow landed on Tammy's upturned 
ass, her breath whooshing from her nose in surprise and her 
gorgeous young eyes widening, pleading with me to make her 
sister stop.  Three more blows struck her ass in quick 
succession, making her whole body jerk in her bondage, 
making by cock harden even more.  Tears began to fill 
Tammy's eyes as I continued to stroke my cock before her, 
Tasha laying into the back of her thighs now, the sound of 
leather on flesh filling the air.
	Tammy's whole body began to shake and buck in 
agony as my fiance relentlessly beat her, her ass and thighs 
a bright crimson, tears coursing down her face to drip onto 
the slickly polished hardwood floor, ragged screams 
escaping from around the ball gag to join the wicked sound 
of leather hitting flesh, creating (for me at least) an 
incredibly erotic caucophany of sound.
	"Tasha," I said sharply, noticing she was nowhere 
near stopping, "don't you think her skin looks a bit 
yellow?"  When we were ungagged, that was our safeword, as 
well as our call for adventure--the proper name followed by 
the word yellow.
	One last <WHAP> and one last agonized scream and 
my fiance grabbed the end of the strap, "Maybe you're 
right."  She walked around until she was kneeling before her 
sister, staring straight into her tear-stained eyes, "but 
don't think I'm finished with you yet," she snarled.
	"Bring me the jolter," she commanded me, and I 
whistled out loud.
	"You really think she can take it?"
	"Shut up and do it!" she practically screamed at me, 
gripping her sister's chin in her hand and shaking her head 
back and forth.  I knew from experience that when my fiance 
got in a mood like this I had two options:  either throw her 
down and rape the shit out of her, which was getting harder 
the stronger she became, or do what she said.  I opted for the 
latter.
	"The zapper" was another one of our homemade 
devices, a car battery mounted on a rather ugly piece of 
partical board, the wires coming from the poles run through 
five different resisters, each resister turned on or off by a 
single switch.  We had split the wire into five pair of wires 
and attached allegator clips to each end, which in 
themselves were a type of torture.
	I handed my fiance the zapper and walked behind 
her sister, enjoying the beautiful sight of her beaten ass.  I 
ran my hands gently over her cheeks, enjoying the soft 
moans which escaped her lips at the pain from my touch, 
and the small jerking of her body away from me.  My cock 
was at full mast now, and I slid it between her well-spread 
thighs, surprised to find her cunt slick and smooth.
	Tammy was grunting frantically now, her slender 
body twisting madly back and forth as she watched her 
sister prepare the zapper, but I ignored her, instead feeling 
the inside of her thighs, my hands coming away wet with her 
juices.  I slid my foot forward and into a puddle of 
slickness.  I really couldn't believe it.  Who would have?  
The little bitch of my almost sister-in-law was a hardcore 
masochist--usually the pleasure came only after the beating 
was done.
	"In her ass," I heard my fiance say as she attached 
one of the clips to her hanging nipple, causing her to contort 
even more in her bonds. 
	I looked dubiously at Tammy's small, pink asshole, 
nestled lovingly between her reddened, throbbing 
asscheeks, and reached for the lube.  I didn't have an 
enormous cock, but it wasn't small either, and Tammy had 
the smallest, tightest asshole I'd ever seen.  But hell, it 
would be worth a try.
	Tammy began to release small cries from her throat 
as my fiance began to attach the final three clips to her 
pussy, one grabbing the flesh just below her clit and one 
each gripping her inner labia.  I knew from my fiance how 
painful that was (and from some experience myself), but I 
didn't think Tammy had any idea of what pain she was going 
to experience when I had my cock up her ass.
	I pushed one finger, covered with gobs of lube, into 
her ass, and felt it spasm around my finger, tight even with 
one narrow digit violating it.  Her whole body jerked as 
Tasha hit the juice, and I knew she was feeling the kick of 
electricity in her most tender parts.
	I prepared myself and set my cock up against that 
small, pink ring of flesh and began to push inward slowly, 
seein her flesh resisting me as I tried to penetrate her, her 
flesh spasming with the continuous flow of electricity to her 
tits and cunt.  I slapped her ass hard, my cock a solid steel 
pole of lust as she screamed into her gag, her ass giving a 
little.  I slapped her ass again, muttering "bitch" under my 
breath as she howled in agony as her ass began to strech 
around my cock.
	My fingers were digging into her hips, leaving 
bruises as I felt my cockhead slip beyond the ring of her 
ass, gritting my teeth at the delicious pain it was causing 
me.  Tammy was howling constantly know, great wracking 
sobs coming from her throat as I violated her virgin ass, 
Tasha turning up the current, making her thrash about even 
more.
	I drove relentlessly down, inch by slow and painful 
inch, seeming to drag her skin along with my penis.  I had 
never ever been in a hole so tight--only once had Tasha even 
bound my cock this tight--it was wonderful, wonderful to be 
fucking this hot teenaged piece of meat who was screaming 
and sobbing and bucking under my onslaught.
	It was so good as I slid the last inch in, my hips 
pressed against her cheeks, my cock buried deep into her 
ass.  If I hadn't come earlier, I would have now, just standing 
there, the way her rectum was spasming in pain with my 
penetration and the elecricity coursing through the body.
	I pulled back slowly, not surprised, even will all the 
lube, at the thin streak of blood on my cock.  I didn't care, 
though, this bitch was too much, too good.  I was going to 
fuck her until I filled her full of come.  I began pushing my 
cock slowly in, her tightness making it impossible to fuck 
her any faster, and dragging it out, every inch a fight, every 
stroke a wonderful agony for me as her rectum continued to 
spasm around my invading cock.
	The little bitch was howling and shrieking 
continuously now as Tasha upped the juice one more notch 
and I worked in and out of her ass, her young, slender body 
shaking epileptically as we assaulted her sexual organs.  
The sound of muffled screaming and squelching and heavy 
breathing filled the room, along with the heady scent of sex 
and sweat and lust.  I began to feel that familiar tingling, so 
akin to pain, just below my scrotum, and knew I was going to 
blast into her soon.
	My jaw was clenched and my hands were clawed 
about her hips, practically dragging her off the ground with 
each inward thrust--I was close, so close.
	I felt her ass practically squeeze my cock off and I 
gasped out loud, my come boiling out into her bowels as I 
felt her whole body tense and liquid splash at my feet, 
splattering me with her come.  My cock was still throbbing 
as I held onto her, dizzy from my spending, as a steady 
stream of fluid hit the hardwood floor and bounced up in 
every direction.  With a start I realized she was emptying 
her bladder and began slapping her ass, loath to remove my 
cock from her ass but pissed she was pissing on the floor.
	God, Tasha hasn't cut off the juice, I thought just 
before Tammy practically leaped off the floor, bonds and 
all, and her urine stopped in midstream, to be replaced by a 
huge gush of come as an orgasm wracked my fiance's sister 
again and again until she hung limp in her bonds, her head 
hanging heavy against her hair.
	"Jesus," was all I could say as I pulled out and 
stepped back, and watched as Tasha unhooked the juice, my 
cock quickly flagging from one of the best orgasms of my 
life.
	Tasha grabbed her sister's hair and gently slapped 
her face--she had actually blown her lights out.  I was still 
amazed as I staggered off to the bathroom to clean myself up 
and take a well deserved break.  This was Tasha's party, 
anyway--let her take care of the clean up.