                         Sisters in heat
                         An Erotic Story

     I came home this afternoon all grumpy and annoyed.  My 
girlfriend Cindy had put me off again; and this was the last 
time.  If she didn't love me enough to have sex with me, then 
fuck her.  Or _not_ fuck her, to be exact.  I'll be damned if I 
was going to go steady with a girl that didn't even put out.  My 
god, if I was so stupid to marry a girl like that, I'd probably 
be like those guys I hear about who get sex maybe two or three 
times a week ... or maybe only once or twice a month, even.
     When I want a girlfriend, I want a girlfriend that FUCKS, 
loves to fuck, and preferably has been fucking since she was five 
years old, or even younger (like some kids I know).  Oh, oral sex 
is fine; and will do I guess while you're getting acquainted and 
before you really start dating.  But to get me interested in 
having a girl as a permanent partner, and (hopefully) even to 
marry, she'd better like sex.  And when I mean like sex, I mean 
more than just once or twice a day, too.  It may seem kind of 
picky; but I'm hoping to find a girl just like my older sister 
who has three boyfriends at once; and is keeping all three of 
them happy.  So far, I haven't seen her with all three at once; 
but I wouldn't be surprised to look in Sandy's room any day now, 
and find all four kids tangled together in one big nasty fuck.
     Damn, does that make my pecker ache.  It will probably be a 
week or two before I find another girlfriend ... hopefully one 
that's NOT a professional virgin like Cindy.
     Mom noticed my disgruntled look as I slammed into the house; 
and immediately sent me down to Vinnie's room.  She knew quite 
well what was bothering me; and figured she could make two 
annoyed teenagers feel better at once.
     Vinnie (Virginia Dawn Metstaff, my third-oldest sister at 
13, being younger than me, Cherry, and Sandy; but older than the 
younger girls, like Candy and Katie) was waiting for me on her 
bed; hands between her legs and face covered by a porno book, as 
she worked herself up to taking her big brother's prick inside 
her.  All seven of us kids have been having sex together, ever 
since Cherry and I first noticed a difference between our legs, 
and how good it felt to put those two "differences" together.  My 
big sister Sandy is the oldest of us kids at 19; and will be 
starting college next year.  The rest of us follow Sandy at 
almost exactly two years apiece separating us in age, from Cherry 
at 17, me at 15, Vinnie at 13, Candy at 11, Tanya at 9, Laura at 
7, and our little baby-sister Katie at 5 years old.  October is a 
VERY busy time for birthdays at our house.
     Looking at my little sister diddling herself on the bed, I 
couldn't wait for foreplay and getting each other hot.  Besides, 
I had already been teased for two hours by Cindy, and Vinnie 
(obviously) was already "hot to trot" from reading the porno 
book.  Thank goodness she wasn't in heat, so we didn't have to 
worry about babies.






                                1


     Vinnie put down the book and lifted her legs to meet mine, 
the moment she felt the bed sagging.  Obviously she was as ready 
as I was.  With a sigh of contentment we both slid together; as 
her wet and ready sex swallowed my engorged member in a loving 
embrace that my ex-girlfriend would probably never give HER 
husband even after years of marriage.  God, did Vinnie feel good 
inside.
     My little sister seemed to enjoy my swollen prick sliding up 
inside her wet and ready sex, almost as much as I did.  Humping 
back at me, she murmured constant little mumbles of, "Oh 
Danny .... do it.  Fuck me.  Fuck me.  Fuck me," that were the 
only words either of us had said since I came into her room.
     After a few minutes, just as I was getting fully into the 
fuck and into my horny sister, Mom stuck her head around the 
doorway to check on us.  Mom often does this these days.  No, Mom 
doesn't mind if I fuck my sisters ... as long as we're both 
careful when I cum in them, so I don't knock up one of the girls 
by accident, like I did Cherry, two years earlier.  ONE little 
bastard by her brother was enough in the family, Mom insists.
     So Mom makes sure I don't fuck the girls when they're in 
heat and liable to get pregnant; insisting I stay away from my 
sisters from the moment they first start to spot, until at least 
two days after they finish their periods.
     Being on the farm, with dogs, cats, cows, and sometimes 
other animals, you get familiar with how animals are bred, and 
how females come into heat.  Their vaginas often swell up, and 
sometimes sticky stuff will come out, as the female gets ready 
for male sperm being planted in her womb.
     The girls, being human, aren't quite the same; being a 
little more messy (almost bloody) and coming into heat almost 
every month or so.  So I have to be more careful about when we 
have sex, if I don't want to knob my own sisters.
     Ever since Cherry first caught, "back when", Mom has been 
checking up on us kids almost every day.  She doesn't want 
another "mistake" like that to happen.  Actually, I don't see how 
it did, in the first place, as my big sister and I had been about 
as careful as we could, not to 'do it' during the time she was 
bleeding.  Mom still blames me though, for not being careful 
enough.
     "Now you be careful when you cum in your sister," she 
reminded me; warning me once again to keep an eye out for any of 
the girls even spotting when we have sex.
     "Yes, Mom," I sighed; while Vinnie giggled at my 
discomfiture.  It took me almost two minutes later to regain my 
wonted hard-on, and ejaculate my sperm in my sister's tummy where 
it belonged; jerking and spraying her womb with thick white cum.
     Vinnie just purred with contentment, as she felt my prick 
jerk and leap inside her; knowing I was filling her tight little 
tummy with incestuous baby-juice.  Knowing she was almost exactly 
in the middle of her period, and about as far from being in-heat 
as she could get, I felt I *was* being about as careful as I 
could when I came in my little sister; pumping six or eight gobs 
of thick pearly-white cum into her receptive young womb.  It 
would most likely be over a week before my sister came into heat 
again and we would have to stop doing this for a few days.


                                2


     Mom says that with any luck, maybe Vinnie won't come into 
heat next month, so we won't have to quit having sex like we 
usually do.  God, wouldn't that be nice?  Two whole months (or 
even more) of full vaginal sex with my horny little sister, 
pumping her tight little slit full of thick sticky baby-juice for 
week after week, without once having to worry about knocking the 
kid up?  A dream of heaven, I guess.
     Thankfully, there's almost always at least one of my older 
sisters who isn't in heat at any time.  If not, there's always 
the three younger kids; but it's not the same excitement as 
pumping your baby-juice in the tummy of a woman who could go into 
heat at any time.
     Which (I guess) is why it's so much fun to fuck Candy.  Not 
having come into heat yet, the little girl could do so at any 
time.  But instead of making me stop until we're sure when she's 
ripe, Mom insists that it wouldn't be fair if I neglected the 
middle girl at the same time I'm fucking at least five of her 
sisters.  Just like with me and Cindy, Mom thinks it's just not 
right for a girl (or boy like me) to have to do without sex 
during the times when we're growing up and our sex drives and 
interest are at the highest.  My ex-girlfriend just being a sad 
example of what happens when a child is neglected like that.  
After all, it's only natural for a healthy young boy to want to 
procreate with his own sisters ... and for those same horny young 
sisters, whose bodies are also developing, to want to feel their 
brother's stiff and swollen sex inside their vaginas, jerking, 
throbbing, and surging, as the boy pumps his baby into his 
sisters' receptive young wombs the way a boy is supposed to.
     Only Mom says the girls are still too young to have babies 
yet, even if their bodies might be ripe enough already.  So she 
just insists that us kids be careful not to fuck when the girls 
are in heat.  I don't mind.  Heck, to *me* anyway, it feels a lot 
better to sink my prick into a girl's slit when she's not all 
messy with blood and gunk.  (Yeah, I'll admit it:  Vinnie and I 
did it once during her period, "Just so we could feel what it's 
like," ... and Mom almost had a fit, when she found out.  
Thankfully, Vinnie didn't catch that time.)
     Even with their little sister, Mom just insists that I watch 
out so I don't do it in Candy when she first comes into heat ... 
which might be quite a while yet.  Still, Mom warns me that the 
signs are there:  Candy's tight little cunny has even more hair 
on it than Vinnie does; while her breasts, butt, and even her 
cute little tummy are already sticking out farther than her big 
sisters' do.
     After supper, I fucked Katie; sliding my prick up in the 5-
year-old's tight little slit, while Mom drifted over to watch me 
sliding in and out of the pre-schooler's tight little slit.  Even 
though I can't get all of my prick inside the kid yet, Katie 
seems to enjoy feeling her big brother's prick sliding in and out 
of her tight little cunny, almost as much as her big sisters do.  
Though they don't climax yet, like the older girls, or even Candy 
does; all three of the younger kids seem to enjoy feeling me 
inside them, almost as much as I do ... especially when I do it 
right and fill their tight little slits full of thick sticky cum 
like I'm supposed to.  So I try not to neglect them, either.


                                3


     Mom didn't say a word until I began jerking on top of Katie; 
filling my sister's loins with incestuous seed as I sprayed the 
5-year-old's uterus with my cum.  Even then, she waited until I 
was almost finished cumming, before having me pull out and slide 
my still dribbling prick in the little girl's big sister, so 
Tanya could feel me draining the last few drops of semen into her 
tight little tummy as well.
     Laura just watched happily , as I left the last of my seed 
in her big sister; knowing that almost certainly meant I would be 
sleeping with HER tonight, since Cherry is still bottle-feeding 
our daughter Michelle (Michi) in bed; having stopped nursing a 
month or two ago.  It's slightly distracting to sleep with a 
sister who has to get up every so often in the middle of the 
night to feed or change the baby.  And having a baby in the same 
bed doesn't help a lot either.  Besides, Cherry should be getting 
close to coming in heat again, as it's been a little over a month 
since her last period; so it's not a good time to take chances.  
So that's why I'll most likely spend the night with my prick 
buried in Laura's tight little slit, instead of Cherry's older 
and more fertile one.  Katie and Tanya (like Cherry and Vinnie) 
would probably spend the night sleeping together, since I wasn't 
available.  What exactly the girls do together at night, I'm not 
sure; but they do seem to have almost as much fun (and sometimes 
even more) than whichever girl I'm sleeping with and I do.
     Mom Doesn't mind how often or when I fuck the younger kids 
like Tanya or Katie; since they aren't in heat yet, like the 
older girls.  She just insists that I be careful when I cum in 
the kids and not pull out, so the girls get to feel what it's 
like to have a man pumping his baby in their bellies, before they 
come into heat and have to worry about it happening "for real".  
In fact, Mom generally expects me to slide my prick up inside 
each of the younger kids at least once a week or and fill their 
tummies with as much sperm as I can, so my little sisters won't 
feel left-out or neglected like I would, if I wasn't getting laid 
by my sisters regularly.  Mom likes to watch.  She says it's the 
most beautiful thing in the world to watch a boy my age slide his 
swollen prick up in the tight little slit of a 5 to 7 year old 
little girl, and see the teenager's prick jumping and jerking as 
he ejaculates incestuous cum in his own sister's little belly 
where it belongs.  Watching a boy pull out, with cum still 
dripping from his penis; and knowing her little girl's tiny 
little womb is almost swimming in her own big brother's seed, is 
so erotic that Mom says she almost passes out from excitement 
when seeing it happen.  I don't know.  From my angle, I don't see 
all that much, you know.  I just feel it.  As you might guess, I 
don't object at all; trying to see that each of the girls gets as 
much of my sperm in her cute little tummy as she wants, or I can 
put there, whether Mom is watching or not.
     Like you might guess, I don't mind doing it with the kids at 
all; even if it's not quite as exciting as possibly knobbing one 
of the older girls.  "Old enough to bleed, is old enough to 
breed," as Mom says, when warning me to be careful when I cum 
inside my sisters.  Heck, feeling the tight little sleeves of 
Tanya, Laura, or even 5-year-old Katie sucking the sperm out of 
my prick and into their cute little tummies feels almost as good 


                                4


as when I do it in their big sisters.
     And I don't have to be careful that the younger kids aren't 
in heat, getting my prick all bloody, when I do it inside them, 
either.





















































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     First of all, these are all STORIES, not advice on how to 
     have sex, or with whom.  They are all FANTASIES not reality.

     The original poster of this story, Frank McCoy, (Not 
     necessarily the author; as some stories in "The Erotic 
     Story" series posted by him, are NOT written by him ... 
     though most are.) can be reached by responding to this post 
     in the newsgroups, by posting a message to either of the 
     newsgroups alt.fan.frank.mccoy, or alt.sex.stories.d. or by 
     email to: "Frank McCoy" <mccoyf@millcomm.com>

     All stories posted by Frank with the Sub-Title, "An Erotic 
     Story" (including this one) are in the Public Domain; and 
     free for any use by anybody.  Retaining the title and sub-
     title, if the story remains unchanged, is requested; but not 
     required.  Stories posted by him, that are *NOT* so sub-
     titled, have copyrights retained by the original authors.

     Excessive restrictive use by pay-sites as "private" and for-
     fee stories of the "An Erotic Story" series, will be met by 
     exercising the author's own rights under Public Domain, and 
     posting copies to newsgroups, along with pointers to other 
     free and competing websites.

     Use of the stories by pay-sites to use as samples however, 
     is actively encouraged as a way to disseminate them freely 
     even further.  Please don't flood the groups with multiple 
     copies of the same story week after week.

     For more stories posted by Frank (some copyrighted, but most 
     not) try:
     http://www.young-stuff.com/frank/
     Or:
     ftp://ftp.asstr.org/pub/Authors/Frank_McCoy/index.htm

     These are both WEB pages; in spite of the FTP label on the 
     asstr site ... though it CAN be accessed by FTP as well.  
     Just point your web-browser at either and get the same data.

     Or, try Incestgrrl's site.
     http://www.come.to/incestgrrl
     (It's not quite as up-to-date; because Frank doesn't 
     maintain her site like the two mirrors.)  However, it's 
     free ... and there's lots of other stories there besides 
     his.

     Check out ASSTR also
     http://www.asstr.org

     Frank also recommends three pay-sites that have helped him 
     on occasion by hosting his stories, or in other manners:
     Young-Stuff    http://www.young-stuff.com
     Daddy's Girls  http://www.daddysgirls.org
     Mr. Double     http://www.mrdouble.com



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