Note: This story was dynamically reformatted for online reading convenience.
 
 Monday morning came, and with it, the usual Hogwarts school routine.  In
the dormitories of each house, children and teens yawned and stretched,
most of them desperate for more sleep.  Either that, or hungry.  Marietta's
routine was a bit different from what it had been the last few months - she
was able to rise with the rest of her fellow Ravenclaws, instead of getting
up early and hastening to Moaning Myrtle's bathroom to see Hermione.  And
she needed the extra sleep.  She had gotten very little rest on the
weekend. On Saturday night she had been wakened in the early hours -
suddenly aware that Luna had slipped into her bed.  It had to be Luna - who
else would wake her by gently tonguing her navel?

   Fortunately, Luna had closed the curtains round the bed first.  Marietta
had charmed the bed curtains two years before, and so no sound could escape
them - which was fortunate, because immediately Marietta had become rather
noisy as well as very wet at Luna's expert, practiced touch.  Luna knew
every inch of Marietta's body by now, and her tongue had quickly headed
south, lighting gently on Marietta's already swelling clitoris.  Marietta
gasped with delight, gently holding Luna's head as she made sounds of
encouragement.

   Hermione was only the second girl Marietta had made love to, Luna of
course being the first, and the technique of the two girls was quite
different.  Hermione, a novice at lesbian love, and been in a state of
wonder - eagerly exploring the folds of Marietta's beautiful body.  Luna,
on the other hand, had been there many, many times, and there was nothing
new for her.  Yet her enthusiasm was unabated, and in no time Luna was
cheerfully sucking Marietta's clit with abandon, bringing Marietta so close
to the edge before releasing her.  Luna had always been the more aggressive
one, the more dominant in bed.  With Hermione, Marietta had had to take the
lead, but with Luna is was quite different.  Although she was about the
same height as Hermione, and thus much smaller than Marietta, Luna somehow
was easily able to dominate the larger girl - this had been so since their
very first lovemaking session on the couch in the common room downstairs,
two years before.

   Luna had her wand with her on this occasion, and with a quick wave of
it, Marietta found each of her hands bound to a bed post.  Marietta loved
by restrained, loved surrendering herself, and as always was filled with
powerful emotions as she gave herself up completely to her lover.  When
tied up like this, Marietta was filled with a combination of deep affection
and worship for her blond girlfriend.

   "Luna oh Luna I'm glad you tied me up I've been very naughty I'm sorry
Luna I really am!" said Marietta, her voice husky.  In response, Luna
loosened her bonds, made her turn onto her stomach, and then tightened the
restraints again.  Marietta thought she knew what was coming, and wasn't
disappointed.  Luna began to smack her roughly on the ass, no play acting
here at all, but using as much strength as her small frame could muster. 
There was almost no light penetrating the bed, but Marietta was sure that
if it were daylight, her ass would be a bright red by now.

   "Luna please stop oh please forgive me I'm so sorry please don't hit me
any more," moaned Marietta, not meaning a word of it.  Luna redoubled her
efforts, for unless Marietta said the special phrase ("enough is enough"),
Luna knew she could keep right on going.  And so for some time Luna had
spanked her red-haired friend, then licked her close to orgasm, spanked her
some more, tongued her again, at times cruelly twisting Marietta's long
hard nipples until Marietta begged her to stop.  After the longest time,
when Luna had fist fucked her twice to enormous orgasms, and when Marietta
felt she could stand no more, Luna undid the restraints, grabbed Marietta
by her beautiful long hair, and pulled her towards her waiting thighs. 
Held firmly in place, Marietta licked for all she was worth.  In less than
a minute, she was rewarded with the culmination of her effort.

   "I'm coming girl yes lick me harder give it to me oh yes oh
yessssssssss!!!!!!!" Luna screamed, her hips bouncing up and down as
Marietta struggled to keep her mouth locked on the teen's clit.  Finally
Luna's struggles slowed, and then ceased, and the two girls lay down
together, side by side, sharing the bed, the pillow and their tongues. 
They had fallen asleep in each other's arms, happy, satisfied, at peace
with the world.

   That had been a very pleasant end to Marietta's Saturday.  In a way, the
day had been bookended - Saturday morning she had made love to Hermione,
and that night had orgasmed under a different girl's tongue - the first
time Marietta had made love to two different people in less than
twenty-four hours.  But in between those two very pleasant events had been
a bit of drama, for Saturday afternoon after lunch she'd been sitting in
the Ravenclaw dormitory, chatting with Luna, when suddenly Luna's usual
misty look had cleared, and suddenly she had whispered to Marietta that she
knew about Marietta and Hermione.  Although not quite in Snape's class as a
Legilimens, Luna was quite proficient, and the images in Marietta's mind of
Hermione's sweet body had been so powerful that Marietta had practically
been broadcasting what happened.

   Marietta was surprised at how calmly Luna took it, and was annoyed that
she had given the blond beauty so little credit.  Yes, Luna was somewhat
sad that Marietta had taken another female lover at Hogwarts.  But once
Marietta had explained why this was so, that it had to be in order to
remove Hermione's curse, Luna had been very understanding.

   "I had promised Hermione to tell no one that we'd become lovers," said
Marietta.  "But since you figured it out on your own, I had tell you why.
Now you know Hermione did it for me - only for me, and with the greatest
reluctance, overcome only by large amounts of alcohol."

   "And your tongue.  And a dildo," laughed Luna.  It was good to hear Luna
laugh - she was often so . . .  not serious, but curiously detached from
the world around her.  Then Luna added, "You'll have to tell Hermione I
know, and explain to her that I figured it out on my own, so she won't
think you've broken a confidence."

   Luna was of course correct, and the next day, after breakfast, Marietta
had told Hermione straightaway exactly what had happened - that Luna had
easily discovered on her own about Friday night's events.

   "I'm not surprised.  You'd told me under veritaserum how Luna had
figured out what you were thinking the night she seduced you.  Do you think
it would be wise for the three of us to talk?" Marietta thought so, and
said as much, adding that Luna had volunteered to take an unbreakable oath
to tell no one about Marietta and Hermione.  They found Luna in the
library, and having collected her, the three went for a walk outside after
breakfast, the air cold and still, heavy snowflakes gently falling around
them as the strode the paths around the castle.

   "I appreciate your offer, Luna, but don't need to take you up on it -
the very fact your willing proves an unbreakable oath is not needed.  And
in exchange, Luna, let me say this.  I don't want to try to take Marietta
from you - I have no thoughts that way at all.  If you'd prefer that
Marietta and I not be lovers, I'll honour that, because I know you two have
been together a long time."

   Luna was silent for a while as the girls walked on.  A snowy owl
interrupted their outing, snatching from the underbrush a small, squealing
creature that briefly regretted before its life was snuffed out its
decision to delay hibernation.  The girls watched nature at work for a
moment until the owl flew off with its motionless prey.  Luna's voice broke
the silence.

   "I'd rather let things run their course," said Luna.  "I admit it hurts
- a lot - knowing that Marietta and you are now lovers.  But it was bound
to come, and if I were to try to interfere, it would only hurt more. 
Nothing the two of you do will take away from what Marietta and I had and
still have.  I only ask this - please don't try to pretend, or cover up
what you are doing with each other or feel for each other.  That would be
the most painful thing of all."

   Luna's acceptance was immediately rewarded that very evening, when in
the Room of Requirement, the three girls experimented with a threesome -
the first for any of them.  Luna lay on her back, licking away at Marietta,
who straddled the blond's face in an upright position on her knees. 
Hermione's legs were over Marietta's shoulders, leaving the young
Gryffindor exposed to Marietta's searching tongue.  And Hermione, face down
near the floor, effortlessly explored Luna's lovely body.  Luna, the most
skilled of the three, easily brought Marietta to an orgasm so strong that
the girl could no longer remain upright as the waves of pleasure overcame
her, and so she gently lowered Hermione down to Luna's waiting mouth, and
now Hermione began to experience the oral skill that had pleased Marietta
so well for two years.  Luna and Hermione came together rapturously, their
muffled moans adding to their mutual pleasure.  It was some months before
they realized that the menage-a-trois in which they'd engaged was a very
powerful charm that bound each of them to the other, the effect of which
would be felt the rest of their joint lives.

   Later that night Marietta had been very glad to find Luna in her bed,
and then Sunday night, too - she sensed that in coming to her, Luna showed
that she not only tolerated Marietta's continued relationship with
Hermione, but even approved, especially since she was going to be included.
She would always get a good share of Marietta, given that they were in the
same house, and Hermione in Gryffindor.

   Such were the thoughts on Marietta's mind as she headed down to
breakfast that Monday morning - tired, a bit sore, but very, very happy -
free of her curse and her beauty restored, with two wonderful lovers now to
occupy her evenings.  She seated herself at the Ravenclaw table, joining
her best friend, Cho, who picked up instantly on her friend's mood.

   "So the cure worked!  I haven't seen you so happy in a long time," she
observed.

   Marietta explained that yes, the punishment she'd experienced the week
before had turned out to be sufficient, but of course did not explain the
additional measures necessary to complete the cure.  Cho smiled with
unaffected pleasure at her friend's restoration.  Luna soon joined them,
and they chatted away, or at least Cho and Marietta did, for Luna soon was
in her own inner world, her thoughts unknowable.  It had taken a while for
Cho to get used to this, but for Marietta's sake she had come to accept it,
and like Marietta to value Luna as a friend.

   This morning's schedule dictated that Marietta had potions first, and so
she parted from her friends and headed down to the lower levels of Hogwarts
where potions was taught.  She had always been a star pupil at potions, but
she enjoyed to subject ever so much more now that the vile Professor Snape
was no longer teaching it.  From about third year onwards she had been
conscious of his attention - coming to her table ostensibly to check the
work of other students, at times finding fault with her almost flawless
work as an excuse to speak with her, and occasionally if she turned towards
him suddenly, she would catch him staring at her - leering in fact.  He was
old, greasy, lecherous - a dirty man, who would have been light years out
of his league to pursue Marietta even if his age were halved.  But Slughorn
was a different creature entirely, genuinely taking delight in his
students' accomplishments - Harry's, for the most part, given his stellar
performance in class, but Marietta got the impartial attention due to her,
and she enjoyed it very much.  Such were her thoughts as she headed down
the stairs to the lower regions of Hogwarts, joining the lineup outside the
potions room.

   Hermione was already there, and Harry too.  Malfoy was at the head of
the line, studiously not looking in Marietta's direction.  Hermione glanced
at Marietta, and then nodded in Malfoy's direction.  There was not even a
hint of a smile on Hermione's face, but Marietta knew she was screaming
with laughter inside, as was Marietta herself.  The laughter became
somewhat audible when Hermione assured Marietta that she had closely
observed Malfoy as he had walked to the potions class - and his gait was
rather odd.  Marietta wondered allowed at would could possibly be the
cause, and the two girls had a quiet laugh together.

   Harry understood nothing of the exchange, and then it was over, for the
classroom door opened, and Slughorn ushered them all in.

   In no time everyone was in their place, and a few moments were occupied
while Slughorn collected their homework, and then returned an assignment to
them.  And then the day`s lesson began.

   "What I'm going to show you today arguably belongs in a class for Care
of Magical Creatures - the Incursio potion - no, it's not what you'd think
from the name, although it's one of the few potions not intended for human
consumption.  It helps us detect hidden passages created by Nifflers and
other burrowing pests, both magical and non-magical.  With it, we can
discovery a termite infestation before it gets out of hand.  Or if a
plumbing weevil has invaded your home's pipes, this too can be discovered -
any time an unwanted nuisance is thought to be in the area, this potion
helps us discover it.  Now the potion does not detect the unwanted creature
itself.  Rather, it detects the creating of a new passageway, or in some
cases, such as the plumbing weevil I just mentioned, the augmentation or
increase in diameter of the passageway.  So let's get started."

   During this little speech the class for the most part had listened
attentively.  The exceptions were Malfoy, Hermione and Marietta.  Hermione
and Marietta were looking slyly at Malfoy.  Malfoy was not looking at
anyone.  Instead, he was feeling rather uncomfortable, and kept shifting in
his seat, trying to find a position on the stool that did not increase the
pain he felt.  Hermione and Marietta easily surmised the reason for his
frequent changes of posture, giggling quietly as they watched his
discomfort increase as the lesson wore on.

   In no time the class was very busy, reading from their potions book,
sorting the necessary ingredients, and bringing the potion's base to a low
boil in preparation for the first of the herbs.  It was a tricky potion,
Marietta saw, and she wondered how useful it was.  In fact, it wasn't all
that useful.  Slughorn had had far to much to drink over the last couple of
days, with some friends coming to Hogsmeade and staying the weekend.  He
had not had time to prepare his usual thorough, interesting lesson, and had
chosen the Incursio potion because although it was difficult to make, it
required no special ingredients to be gathered - everything the students
needed would be at hand, with no effort required on his part.  He was not
capable of much effort - he had woken with a terrible hangover, which he'd
quickly banished with a healing potion, but the side effects left him tired
and inattentive - which is another reason he'd chosen the Incursio potion -
if a student went wrong in making it, the result would simply be an inert
mess, and not a catastrophe requiring emergency measures.  And so Slughorn
had sat comfortably on his professor's chair, not really paying attention
to the students' work.

   Harry had of course turned to his annotated potion's text, confidently
opening the book at the index.  But no where did he see the word,
"Incursio".  Unperturbed, he turned to the "Domestic" section - doubtless
it was to be found there.  No luck.  Becoming alarmed, he began randomly to
flip through the text, hoping he'd see something that related to the task
at hand.  But for once he was at a loss.  The other students were now well
along in their preparations, and Harry realized he would have to give up on
his book.  For once, he was on his own.  He resorted to following the
handout Slughorn had provided, hastily assembling the ingredients and
putting his cauldron on to boil.  Hermione was sharing a table with Harry
that day, and although she was very busy, she had kept an eye on him and
was amused at what she saw.

   "Will the world's foremost whiz at potions be able to overcome the
handicap of not having a book to tell him what to do?" she mused quietly.
Although very annoyed at his predicament, Harry could not help laughing
quietly at the irony of the situation.  He had had enough glory from the
Half-Blood Prince's marginal scribblings, and perhaps it was only fair that
he struggle on his own now and again.  Not one to quit without a fight, he
struggled bravely to do his best, following the instructions as best he
could, hoping that he did everything right.

   Slughorn was not the only person in the room having trouble paying
attention - Marietta was quickly making a botch of it.  She too was
fatigued, and went wrong from the start, reversing the order of the first
ingredients.  She never realized what had gone wrong, and by the time the
allotted time was almost expired, she could only look at her cauldron in
despair - the contents had positively solidified.  Marietta was quite
confident that to qualify as a "potion", the substance had to be liquid. 
She would receive a poor grade indeed for this particular effort.

   Ernie McMillan looked into Marietta's cauldron.  "Very good," he
exclaimed.  "You've created a "just add water" condensed version!" Marietta
laughed at the jibe, for Ernie's was hardly any better - a liquid, at
least, but not the pitch black that the instructions said would be the
result.  Instead it looked like liquid cement.  Ernie looked around at the
other tables - every cauldron he could see was filled not with a proper
potion, but a horrid mess of some kind.  Surely this particular assignment
would be bell curved.

   Finally Slughorn heaved his bulk from his chair, slowly making his way
around the class.

   "Marietta!" he said, shaking his head.  "What a mess!  And Granger -
hardly any better.  But let's see what Mr.  Potter has managed to do today
- Oh good God!" exclaimed Slughorn, as Potter's effort dissolved every part
of the caulrdon it touched.  "Potter, one must go very wrong with the
Incursion potion to get something like that!  What were you thinking?"
Harry could only shake his head ruefully.  He had no idea where he'd erred.

   Slughorn continued to shuffle his pudgy body passed the various
students, not really that surprised by the results.  Until he came to
Malfoy's table.  Malfoy was not a bad potions student, but he had not
exactly excelled in this class, either.  But for some reason, on today of
all days, he had managed to shine - his cauldron was filled with a rich,
black, bubbling substance - exactly what was expected.

   "Mr.  Malfoy - I am indeed impressed - this is one of the most difficult
potions we've looked at this term, and you've mastered it on the first try!
Thirty points to Slytherin!" Malfoy beamed at the rare praise from the
potions master - the first points he'd earned for his house in this class,
whereas under Snape he'd routinely done very well indeed.

   Now it was time to demonstrate how the potion worked.  "As I said, this
potion is of course not to be consumed.  Instead, one simply spreads it
over the surface of the area one suspects is infected.  The potion
immediately goes to work.  Any recent opening in the earth or enlargments
will be signalled by oil black substance that will be gathered and expelled
from the infected area.  Now let's see - where can I demonstrate this?"
Slughorn was at a bit of a loss - he had not anticipated that he'd have to
demonstrate the use of the potion, for he had expected no one would be able
to make it.

   Malfoy too was at a loss.  He had not been listening when Slughorn was
speaking at the beginning of the lecture.  He'd not heard the part about
the potion not supposed to be consumed, and had not really paid attention
to the part about it's purpose - he'd been too uncomfortable.  And so as
Slughorn had turned away from him, praising him to the entire class, Malfoy
decided to have a taste of the potion.  No sooner had he done so than he
realized he'd made a terrible mistake.  Marietta and Hermione had been
observing him, and were shocked to see him down a spoonful of the
substance. They watched eagerly for the result, and were not disappointed.

   The potion speedily ran through Malfoy's system, and it quickly
ascertained that yes, indeed, there was a passageway nearby that had
recently been augmented in size.  Suddenly, streams of an oily, filthy
substance began to issue from Malfoy in a most indecent way.  Malfoy leaped
up, screeching horribly, running for the door and leaving an ugly trail
behind him.  The entire class watched in stunned disbelief as Draco whipped
open the door, and ran for the infirmary, the sounds of his anguish
gradually diminishing as he charged up the stairs, a black trail behind him
marking his path.

   Harry began to wonder allowed what could possibly have been the matter
with Malfoy.  Hermione quietly assured him that he would get a full report
when he joined the Gryffindor table for dinner that evening.

   Slughorn looked on in dismay at the mess made in his usually pristine
potions room.  An evil smell was beginning to overpower them all, and he
advised all the students to leave.  He had been teaching for many decades,
and had learned how to safely take shortcuts from time to time.  But this
one had backfired (in fact, literally).  He had no idea what Dumbledore
would say about this one.



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