Note: This story was dynamically reformatted for online reading convenience.
 
 Harry Anderson was an amateur scientist.  He was always down in the
basement of his house playing around with his chemicals.  He had told his
daughter, Grace who's 14 and his son Ernie, who is 13 to never come around
him when he was working because something might happen when working with
chemicals like he does.  It was Ernie's birthday and Harry told him that he
and Grace could come and watch him for a little while.  Harry has a vile of
liquid and starts to pour a vile of liquid into the first vile and when he
does it explodes .  The liquid from the explosion covers all three of them.

   Harry says, "Well at least it wasn't explosive and didn't really harm
anything.  I think you two had better leave and let me clean up this mess
from the floor and counter.  Then he notices that the two of them are
starting to disappear, WHAT THE FUCK IS HAPPENING HERE!  Grace says, "DAD
YOUR DISAPPEARING AND ERNIE IS ALSO!" A couple minutes later all three of
them have disappeared from sight.  Ernie says, "Dad, Are you there?  Grace
Are you there?" They both answer him and tell him that their there and that
their alright they just can't see each other.

   That their invisible.  Grace says, "Dad, You mean that we can do and go
where we want to and nobody will be able to see what we're doing.  Harry
tells her that it looks that way, at least for now until he find an
antidote to bring them back to becoming visible again/ Just then the door
opens to the lab and in walks Julie , Harry's wife.  She says, "Shit, Now
where did they all disappear to just when it's about time to eat supper. 
Oh well if they don't get back soon they'll just have to eat it cold."

   She turns around and walks out.  Grace and Ernie begins to laugh and
says, "Shit, Mom didn't even know that we were here.  Harry tells them to
go ahead and leave and when they are in their room.  Ernie says, "Shit
Grace, You know what this means, Now I can fuck you whenever I want to and
don't have to worry about anyone catching us fucking, since they can't see
us.  Grace says, "Yeah, This might be a blessing in disguise." They both
start to get undressed and start to feeling each other to see where Grace's
pussy is and Ernie's cock is and guide them together.

   He says, "The only bad part is I can't see you when your naked and see
your body.  She says, " Shit it's the same way with me, I can't see if your
cock has gotten any bigger since the last time you fucked me.  Ernie fucks
Grace and cums inside her and then gets an idea.  "Let's go down and let's
feel Mom's tits.  It'll drive her crazy when we go feeling her tits and
there won't be anyone there.  No since getting dressed, since she won't be
able to see us anyway.  They go down and see her in the kitchen and Ernie
goes over and squeezes her tit and she says, "Harry, You know you shouldn't
be playing around like that with the kids here."

   She turns around and ther's nobody there.  She says, "Shit, what the
fuck is going on here, it felt just like someone had squeezed my tit, but
there isn't anyone here.  I guess it was just my imagination and I was just
dreaming and wanting it to happen.  I wonder where the fuck Harry and the
kids are.  If they don't get here soon the supper will be getting cold.  A
few minutes later she sits down and begins too eat and and while she is
eating the knives and forks begin to move and the fork moves up with food
on it and then disappears.

   She says, "Shit what the fuck is going on here, am I going crazy or
what. Harry then speaks up and tells her what has happened.  She says, "
Honey did you squeeze my tit just a little while ago?" He tells her that he
didn't and she says, That means only one thing, Ernie, it was you that
squeezed my tit wasn't it?" Ernie tells her that it was him, that he
thought it would be fun to have her wondering what was going on, besides I
didn't mind getting to feel and see how your tits felt." She says, "Oh, You
did huh?  Well when I can see you again you get to see how my hands feels
on your rear end."

   Harry says, "Shit Honey it's only natural for a boy his age to want to
learn about sex.  I'll bet that he would love to see your actual tits
without your blouse on.  Why don't you take your clothes off and let them
both see you naked.  I'd take mine off too but it wouldn't do any good
since they can't see me anyway.  If we ever get back to normal I'll let
them both see me naked and let Grace suck my cock and if she wants me too,
I'll even fuck her.  Why don't you go ahead and get undressed and let Ernie
see you naked and maybe let him suck on your tits and even let him eat your
pussy and then let him fuck you and then Grace can eat your pussy and suck
his cum out of you."

   She says.  "Well I don't know if I should.  You do know that this is
illegal to do with children don't you?" He says, "Shit yeah, I know but who
the fuck is going to see you being fucked by Ernie, You won't be able to
see him fuck you yourself, You'll only feel his cock going into you and
fucking you and when he shoots his load of cum into you.  While he's
fucking you Grace can take care of me.  What would you like to do the most
honey, Suck my cock are have me fuck you?" Shit Dad, I've been wanting to
have you fuck me for I don't know how long and see how much better it feels
to be fucked by you compared to Ernie.

   Julie says, "Alright young lady and just what did you mean by that . 
That you wanted to compare your father fucking you to the way Ernie feels
fucking you.  You mean that you two have been fucking together and far how
long have you been fucking together?" Grace says, "Alright Mom, Yeah we've
been fucking together whenever you and Dad aren't around and we've been
fucking now for about a year and a half." Julie says, "Is he the only one
you've been fucking with or has your boyfriend fucked you also.?"

   Grace says, "No Mom , Eddie has been wanting to fuck me but I wouldn't
let him do it to me, but I do suck his cock for him whenever we can get the
chance to do it." Julie says, "Well we'll talk more about this when you
guys get back to normal.  Do you guys really want me to do this and get
naked and have Ernie to suck my tits and fuck me.  All three of them says
Yes that they do want her to do it and Grace adds, "And Dad gets to fuck me
, Right Mom?" Julie says, "OK, Your father can fuck you, since I won't be
able to see him doing it to you.

   Maybe after you all get back to normal I might change my mind about him
fucking you and Ernie fucking me, But for now we'll go ahead and let
everyone on what they want to each other .  And tomorrow Harry you start
looking to find a antidote for this thing to get you back to normal.  I
still like seeing who it is that's fucking me, even if I do know that it's
you that's doing it to me.  Grace says, "Mom, Could maybe you and Dad sleep
with us tonight.  Let Ernie sleep with you and fuck you and I'll sleep with
Dad and he can fuck me also."

   Julie says, "Well I don't know, what do you think honey?" he says, "Well
It'd be alright with me but if anyone was to come in it'd look like you
were sleeping alone and our bed would look empty.  Ernie says, "I was
thinking.  Why don't you go to the movies, Mom and the rest of us can get
in free.  Or better yet lets go to one of the porno theaters and we can all
watch the porno movies.  If you didn't want to go Mom , Dad could take us."
Julie says, "And just how do you expect to get to the theater?" Grace says,
"In the car naturally." Julie says, Yeah and Who is going to be driving the
car without me there." Grace says, "Well, huh?  Shit I hadn't thought of
that, I guess you would have to come along too.  Yeah, without you it'd
look like nobody was driving the car." Julie says, "OK, Maybe we'll go
tomorrow night and see one of them things.  Maybe we can pick up some new
techniques to fucking.  and as for as for your father and I sleeping with
you both.  I guess we can try it and see how it goes I just hope that I
don't go and move my knees and kick Ernie in the balls and that you honey
don't kick your father in the balls either, since neither one of us will be
able to see where the boys balls are at.

   Shit I just got an idea, I'll be back in a minute." A couple of minutes
later, she returns and says, "I got the idea to mark around both you guys
cock and balls with a lipstick and see if it shows up or it becomes
invisible also She offers the lipstick to Harry and tells him to mark all
around where his cock and balls are and we'll see if it shows.  He does and
applies the lipstick and covers his balls especially and they are now
visible.

   Ernie then takes it and applies it to his cock and balls also.  Grace
says, "That was a great idea Mom, Now we know where to start playing at and
won't have to search to find their good parts." She goes and starts sucking
her fathers cock and then says, " The only problem is the taste of the
lipstick, but I guess it won't hurt me.  She ends up sucking him off again.
Mom, Do you think that it'd be alright if I went to Eddie's house tomorrow
and let him fuck me and I suck him off.  " Julie tells her that it'd
probably be OK since nobody would be able to see them fucking together.

   They all go to bed , Ernie with his Mom and Grace with her Dad.  They
have themselves sessions before and after they have went to sleep.  When
morning came, Harry had Julie to call his work and tell them that he
wouldn't be in today.  He went down to the basement and started to looking
for an antidote for his invisibility and his kids invisibility also.  After
breakfast Grace and Ernie go over to her boyfriend Eddie's house and She
calls him on her cell and tells him to come outside and then she waits for
him to come out.

   Finally after about 5 minutes he comes out.  She goes up to him and
tells him Hi and he looks around and can't see her and wants to know what
is going on and to come out of wherever she's hiding.  She tells him that
she isn't hiding and is right next to him.  She tells him that she's
invisible and now they can fuck and not be afraid of being caught by his
Mom.  At first he doesn't believe it and then she kisses him and has him
feel her tits and he begins to believe her, He wants to know how this
happened and she tells him a quick version of what happened.

   They then go into his house and go to his room.  He locks the door but
doesn't lock the door to the bathroom connecting his room with his sisters
room.  He gets undressed and stretches out on the bed and begins playing
with his cock .  Grace tells him to stop that , that she is going to take
care of him herself.  She then takes his cock into her mouth and begins
sucking him off.  Just then from the bathroom door comes his sister and
sees him naked on the bed and says, "So, Jacking off again huh?" He starts
to tell her to be quiet and moves his hand and she looks over at him and
doesn't see his cock, only his balls.

   She says, "Eddie, what the fuck happened to your cock.  It's not there
any more.  Are you in pain and where's the blood.  She begins screaming and
calling for her Mom.  She goes out into the hall and calls for her Mom,
Gwen and she come and wants to know what is the matter.  Janet tells her
that she went into Eddie's room and he was naked on the bed and jacking off
and then he moved his hand and his cock is gone.  His balls are there but
his cock isn't there anymore.  Gwen says, "Shit Janet you must be seeing
things.  His cock couldn't have just disappeared.  Gwen goes into his room
and and see him on the bed and sure enough his cock is gone but his balls
are still there.

   She rushes over to him and trips and lands on Grace's invisible body. 
She says, "What the hell, What did I land on it feels like a naked body but
there's nobody here.  He says, "It's alright Mom it's just Grace and she
was sucking my cock." She says, "How can she suck your cock , It's not here
anymore." She looks down and there is his cock again.  She says, "What the
fuck is going on here anyway and how could she be sucking your cock when
she isn't even here." Eddie tells her that she is here but she's invisible
and that she can't see her.

   Gwen says, "Yeah right." Ernie then goes over to her and begins
squeezing Gwen's tits.  She jumps and wonders what is going on and then
Grace says, "Eddie, I didn't tell you when we came in but my brother Ernie
is also here and invisible and was watching as I sucked your cock and I
would imagine that he just squeezed your Mom's tits also." Ernie says,
"Yeah I did and their nice and soft to the touch, almost as nice as Mom's
tits to the feel."Gwen says, "Shit, You mean that Grace and her brother are
here and invisible.  But what happened to your cock, that it disappeared."

   Grace says, 'His cock didn't disappear, It was just in my mouth and you
couldn't see it because it was in my mouth.  Gwen says, "You mean because
your invisible and if you take his cock in your mouth, then you can't see
it because it's inside you." Grace says, "That's right, the same would
happen if Ernie was to fuck you, You'd feel his cock in you but you
wouldn't be able to see it going in and out of your pussy." Gwen says, "I
would like to see how that works.  Do you think that he'd fuck me and let
me feel his cock inside me and and look and see if I can see his cock
fucking me."

   Ernie says, "Shit I'd love to fuck you and Janet also if she'd let me
fuck her." Eddie tells Grace that there's something that he hadn't told her
before.  That him and his family all fuck together and when she is over
here that is why they all have to go somewhere, in order to give him a
chance to fuck her.  Grace says, "You mean that your Mom doesn't mind if
you fuck me?" He tells her that the can fuck all the time now when she is
over at his house.  She tells him that they can fuck also when he is over
at her house also, That her Mom and Dad fucks with Ernie and her.

   Gwen says, "Shit we all should get together and I could have your father
to fuck me and my husband could fuck your Mom.  Grace says, "Shit, That
sounds great.  We'll have to tell Mom about this when we get home and maybe
have you all to come to our house tonight.  Dad is working on an antidote
to get us back to normal.  Ernie then fucks Gwen and Gwen says, "Shit this
isn't any different than being fucked by Eddie or George, my husband.  I
feels the same as if you were visible."

   Grace says, "Why don't you come on home with us Eddie and maybe we can
fuck a couple times before tonight and maybe you'll be even able to fuck my
Mom.  If you'd like to fuck her." He says, "Shit I'd love to fuck her, I'd
love to fuck anybody as long as they have a nice cunt that I can stick my
cock into.  Janet says, "Can I go too, Maybe your Dad will fuck me, even if
I can't see him do it, at least I'd get t feel him fucking me." Grace tells
her OK for her to come along also.  Your parents can come over later after
your Dad gets home.

   In the meantime at their house their next door neighbor and Julie's best
friend Ruth, comes over and wants to know what has happened since the cars
are still in the drive and she hasn't seen Harry or the kids all day. 
Julie tells her that what she tells her has got to be kept a secret and
nobody must know anything about it or there could be trouble for them all.
Ruth says, "Shit I won't say anything to anybody about whatever you tell
me, What is it anyway?" Julie says, "Your not going to believe it but Harry
and the kids are invisible.

   Ruth says, "Yeah, Right, Their invisible.  What other stories have you
got for me." Julie says, 'It's true.  Let me go call Harry up here." She
goes to the door to the basement and calls Harry and tells him to come up
and he does and closes the door.  Ruth says, "Well where is he?" Julie
says, "Right here , You are there aren't you Harry?" Harry says, "Yeah, I'm
here ." Ruth says, "Who the fuck said that?" Julie tells her that it was
Harry and that he had said it.  Ruth says, "Holy shit you mean that it's
true that he's invisible."

   Julie tells her that it's true and she wants to know what the red circle
is toward his bottom.  Julie says, "That's where his cock and balls are. 
we were afraid that we'd maybe accidentally hit him in the balls and hurt
him and Ernie,since we didn't know where their balls and cocks were and I
got the idea to draw a circle around their cock and balls so we could tell
where they are.  Ruth says, "Holt shit, You mean that Harry is here in the
kitchen with me and he's naked.  Julie tells her that is it that he don't
have any clothes on ."

   Ruth says, "That I don't believe.  " Julie says, "If you'd like you can
go ahead and feel him if you want to." Ruth says, "You mean that You'd let
me feel his cock and you wouldn't mind me doing it." Julie tells her to go
ahead and that if she wants to she can even suck it if she'd like.  Ruth
says,"Holy shit you wouldn't mind if I was to suck Harry's cock.  Julie
says, "You've said before that you'd like to get hold of Harry and have him
make love to you.  Well nows your chance it's alright with me now.

   It sort of made me mad a little when you originally said that but now I
don't mind at all.  Ruth reaches for the red circle and when she gets to it
she says, "Shit it does feel like a cock and balls.  Man, Harry has a
pretty good sized cock on him and man his balls really hang low don't they.
Your sure you won't mind if I suck his cock?" Julie tells her to go ahead
and she does.  She sucks Harry's cock and sucks him off and swallows his
cum.  She says, "Man that was great to be able to suck a different cock
than Bill's cock.  Julie says, "Ruth, would you be interested in also being
fucked by Harry now and if he gets back to normal?" She says, "I'd love to
be able to have him fuck me and be able t suck his cock all the time, Why?"

   Julie says, "What would you say to maybe swapping husbands every so
often, I'd love to have Bill fuck me also and suck his cock too." Ruth
says, "Well, shit, I wouldn't mind doing it and would mind him fucking you
since I was getting to have Harry fuck me.  but I don't know how Bill would
feel about doing it.  I do know that he's mentioned a couple of times that
he wold love to get some of you and Grace, but I don't know how he'd feel
about Harry fucking me though."

   Julie says, " You said that Bill would like to get some of me and Grace.
Is he into fucking kids?" Ruth tells her that not as far as she knows
about. I don't know who he'd be fucking unless it would be Liz and I don't
think that he'd fuck his own daughter.  Just then Grace and Ernie and Eddie
and Janet comes in.  Grace says, "Hi Mom, We're back and you'll never guess
what, Eddie and Janet's parents fuck with them also and their coming over
tonight to fuck with you and Dad, and us.  This is Eddie's sister Janet and
wants Dad to fuck her while Eddie fucks you."

   Julie says, "Grace, Don't you see that Ruth is here and you talking like
that in front of her." Grace says, "Oh shit you mean that she don't know
about us fucking together yet." Julie tells her that she didn't until now.
Ruth says, "Holy shit you mean that you guys all fuck together.  I was
going to say that I didn't know how Bill would take to having Harry fuck me
and then there's the kids to worry about and how we could do it without
them finding out about us switching husbands but shit that wouldn't be no
trouble as long as we all fucked together anyway, and I would get to have
Jeff fuck me also and Bill could fuck Claudia and you guys could also fuck
them and we could fuck you all Shit I'm willing to do it if I can get him
to go along with doing it and we can get the kids to do it also.

   Grace says, "I don't think you'll have any problem with Jeff and Claudia
I've sucked Jeff off a lots of times and They haven't really told me, But I
think that Jeff is also fucking Claudia or at least getting blow jobs from
her.  Can I use your phone Julie, I want to call home and have them two to
come over here right now and find out if their fucking together." Julie
tells her to go ahead and call them .  I wouldn't mind sucking Jeff's cock
for him if you didn't mind me doing it to him." She says, "I wouldn't mind
you sucking his cock but if he does do it I'm going to suck him off first
and then you and Grace can have him.  Ernie says, Can I fuck Claudia while
your sucking Jeff." She tells him that it's alright with her.

   Harry says, "Well shit I'll fuck Eddie's sister and Eddie can fuck you
Julie.  Grace says, "Shit that would leave just me with nobody to be fucked
by or to suck.  Jeff and Claudia come over and come in and Ruth asks them
if they have been fucking together and they both hem and haw and look down
at the ground and finally live up to it and tell her Yeah that they have
been.  She tells them good and for them to get their clothes off and that
she is going to suck Jeff's cock and Ernie is going to fuck Claudia." Jeff
says, "Holy shit Mom, you mean it that your going to suck my cock and let
Claudia be fucked also.  She tells them both to get undressed.  They begin
t get undressed and are soon naked and Ruth takes Jeff's cock and begins
sucking it.

   They all begin playing with the kids and the kids playing with them and
Ruth says, "Holy shit I wish I had known how good it would be to fuck with
Jeff and we could have been doing this a long time ago." I just hope I can
convince Bill to do this also.  I would love to have Ernie and Eddie to
fuck me also beside Harry.  C'mon guys get your clothes on and let's get
home and get ready for you father and how we can convince him to fuck with
us .  They get redressed and go home.  Janet goes over to the big red
circle and and grabs hold of Harry's cock and sticks it into her mouth. 
She says, Your father has a pretty good sized cock on him even with it
being soft right now, It really should be nice and big when he gets
recovered and has his hard on again.

   Ruth tells them to get dressed and they'd be going home and try to
figure out how to break the news to their father.  They go back home and
Harry goes back down to the basement lab.  Ernie and Grace go to his room
and begins to fuck again.  Over at Ruth's house It is almost time for Bill
to be getting home and she tells them both to get undressed and that she
was going to get undressed also and that Claudia was to watch out the
window and see when her father gets home .  About 20 minutes later he
arrives and Claudia tells them that he's here and Ruth has Jeff to get on
top of her and stick his cock into her and fuck her.

   Bill comes into the house and Claudia runs up to him and hugs him and he
is shocked to see her naked.  She tells him to come into the living room
and see what Mom is doing in there with Jeff.  He goes and sees Jeff
fucking Ruth.  He says, "What the fuck is going on here letting our son
fuck you.  How did this get started anyway.  Ruth tells Jeff to get up and
she then starts sucking his cock and he cums in her mouth and she swallows
his cum.  Ruth says, Are you shocked honey by me letting Jeff fuck me?"

   He says.  Slightly, just what is the meaning of this anyway?" She says,
"Does it bother you that he's fucking me.  Would you like to fuck Claudia?"
He says, "Shit if your going to be letting Jeff fuck you then I guess I
should be able to fuck her also." Ruth tells him to get undressed and go
ahead and fuck her that she wants you to fuck her also.  He says, "You mean
it, that you wouldn't mind if I was to fuck Claudia.  She wants me to fuck
her?" Ruth tells him that she does and wants him to before they go next
door tonight and fuck with their neighbors.

   She says, "I guess I had better tell you the whole story.Your never
going to believe what happened today.  I was fucked by Harry from next door
and he'll be fucking me again tonight and also by their son Ernie and
Grace's boyfriend beside Jeff.  He says, "Holy shit you mean to tell me
that you've been fucked about 4-5 times today.  by all them people. 
including little kids.." She says, "Yeah and it's great being fucked by the
kids, You'll love it when you fuck Claudia and Grace and Janet."

   He asks who's Janet and is told that she's Grace's boyfriend's sister
and that their parents fuck with them also.  and we're all going to be over
there tonight and have an orgy of all of us .  The most unbelievable part
is we're not going to be able t see Harry , Grace or Ernie though.  They
can fuck us and we can suck them off but we won't be able to see them,
their invisible." He begins to laugh.  He says, Their invisible.  Yeah,
That'll be the day.I wish I could be invisible.  " She tells him that it's
true that Harry was working on an experiment and it blew up and the kids
was with him and now all three of them are invisible.  He says, "You really
mean it that they are invisible."

   She says "It was the weirdest thing today to have Harry fuck me and I
could feel his cock in me but not being able to see him there fucking me. I
got the strangest feeling.  If you fuck Grace tonight see what you think.
fucking into empty space and also having your cock to appear and disappear
when your going in and out of her pussy.  See if it don't seem strange to
you to be fucking empty space.  The reason I had Jeff fucking me now was I
wanted to get you to fuck with us also and was wondering how to get you to
go along with us and then I came up with this idea.

   I hope you don't mind, honey?" He says, "I don't really mind it was just
a shock when Claudia run up to me naked and then seeing Jeff fucking you,
made me feel kind of weird.  Ruth says, "I'm going to call Julie and tell
her that your in with us and that we'll all be over tonight.  She calls
Julie and tells her what happened and Julie tells her to come on over now
and they can all have supper together and the kids can play together while
they fix the supper.  They all go over next door and Ruth and Julie fix the
supper and Bill begins to talking to Harry and Bill says, "This is the
weirdest sensation it seems like I'm just talking to myself since I can't
see you.

   Do you think you'll be able to find an antidote for your invisibility.
Harry says, "I hope so though it would have it's advantages we were going
to go to the porno theater tonight and Julie was going to go in and we
would sneak in since nobody could see us.  Bill says, "What you should do
is go to the video store and get a bunch of porno discs and bring them home
and watch them I know the guy down at the store and he has a bunch of under
the counter video's that only a select few of people that he knows can
rent.

   Their nothing like the porno's of the plain fucking and sucking.  He has
pissing and shitting and bestiality tapes and actual torture and also tapes
of fucking of kids,.  Harry says, "Boy I'd like to see those myself, Bill
says, "Yeah, Maybe get about 5 or 10 of them .  Bring them home and copy
them and take them back and get another 5-10 different ones After you get
them all,then you can start on the regular porno's.  Harry says, "You know
I think I'll try that.  Let's you and I go down there and you can distract
him from the counter and I'll get some movies.

   They have supper and after supper they all get undressed and start
enjoying themselves and about an hour later Gwen and George arrive and
Harry goes and answers the door.  George says, "Damn, They have an
automatic door opener." Harry says, "Not quite, even if it seems that way."
Gwen says.  " That must be Grace's father.  You remember I told you he was
invisible also." He says That's right I guess it was him.  They go in and
everyone is already naked and tell them to get comfortable also.

   They do and then they all begin to choose partners and fuck and then
change partners after the guys have recharged .  They all continued to
visit each others houses from then on and Harry and Ernie would go to the
video store and get the under the counter movies and record them and take
them back and get some more .  Finally after about four days Harry hits
upon the antidote and they go back to being themselves again.  He tried to
find the formula again for what made them invisible in the first place but
was never able to find out what he had in the original batch that exploded.







   Harry and Julie Anderson Grace, Ernie, 14, 13 Gwen and George Eddie,
Janet 14, 12, Ruth and Bill Jeff, Claudia, 13, 12,