AN : Writing this story to reply to a challenge. Once the first chapter is written I get an update for any of the stories of that writer. YAY!

Sorry for not updating my other stories. Still working on them though. °.°'

Disclaimer : I will never be able to own what J.K Rowling has created. But I can borrow some of her characters to play at my whim.

ALERT/WARNING : Their is SLASH, MALE/MALE, FEMALE/FEMALE, INCEST, and a lot of things that would make some of the most traditional people squirm in their pants. You have been warned. Don't like it, than their is a nice little button with an arrow on the top left of your screen that says "back". I don't wan't any Flamers criticizing my story since they were to stupid to not read the ALERT. Also, I will not be following the events of the HBP and DH books (6th and 7th for those who are confused).

Now that this has been posted, on to the story.

Cambion

Chapter 1 : The Beginning

I was sitting there waiting in my room for you

You were waiting for me too

And it makes me wonder

"The older I get" - Skillet

Thunder rolled in the air, through the dry sky filled with looming clouds as dark as the night. A young boy, nearly a man but not quite yet, was watching through the window while sitting on the windowsill. He had black messy hair and bright green eyes. On his forehead, right beneath the hair was a peculiar shaped scar : a lightning bolt.

Through his emerald eyes, the boy was waiting for the ballet of lightning that should soon appear. After all, it was the perfect night for it too happen. To make it even better, it was the night just before his seventeenth birthday, only a half hour until midnight. Tonight will be The Night. Tonight will be the night where he will receive his magical inheritance and unlock his magical creature side.

Few knew, even the family itself, but the Potters had a magical ancestry. Only if certain conditions were met than the powers and advantages of this ancestry will be released on the night of the seventeenth birthday of the witch or wizard.

Those conditions were :

Only after a minimum of seven generations have passed from the last person to have received the powers.

The child must be born from the main Potter line of the family. If the main line was entirely annihilated than a branch family must be chosen to become the new main line.

The child must be in dire need of those powers to receive than.

The child in question must have a strong magical core as well as being in strong physical shape.

The secret must be kept in the family. Only a few rare friends who have proven themselves trustworthy will be allowed to be informed. If the secret is out than the spirits of the ancestors will withheld all powers and advantages from the Potter family until it is forgotten by the rest of the world.

The child in question must uphold the family's motto and honor as well as being loyal to the Head of the Family.

All of this had been written, along with more information on his family, in a journal that had been placed in the main vault. Sirius had made him emancipated once he reached sixteen years of age in his will as well as Lord Black. Right after the end of sixth year, Harry had visited his family's main vault and had found the journal on a pedestal right in front of the entrance. It had been puzzling for why Griphook, his family's accountant, had insisted that he take it with him but all was cleared up once Harry had read the journal. Being holed up in his room by the Dursleys all summer left him a lot of time to read. He even bothered to make is essays a bit more presentable than usual. After all, it's hard to break a habit when it is ingrained since childhood. And for the Dursleys, nobody can be better than Dudley at school, much less the Freak.

Harry could count himself lucky to have one Miss Hermione Granger, AKA the miss Know-it-all, as a friend. Withstanding her incessant babbling of dry facts and nagging was only a small inconvenience. After all, she was serving her purpose, and as the Headmaster would say : "All for the greater Good".

Let's not forget the redheaded Mr Ronald Weasley. That jealous, ignorant prat could not see fake friendship even if Harry wore a sign stating it. After his fourth year, Harry's and Ron's friendship was truly broken. He did not trust the redheaded anymore even if Ron thought that they were "Best Friends Forever". The black haired boy knew Ron was trying to get out of his brothers' shadows, but was not doing it the right way. But he had his uses, not as important as Hermione, that was certain, but still none of the less, was useful.

And finally, the beautiful and slutfull Ginevra Weasley. Despite appearing to stop her fantasies on Harry, the boy knew that her obsession over him hadn't stop. The fact that she went out with Dean was indicating enough. Plus, Dean told him how she would sometimes moan Harry's name in bed. She also tried to appear innocent, going out with only a couple of people like every normal girl of her age. Who was she kidding? The Hogwart's grapevine could be very entertaining. Who hasn't heard about Ginny accepting to go in a broom closet with almost any boy, for a small price of course. How her brothers hadn't heard about the rumors, Harry did not know.

Glancing at the clock, he saw that it was 11:59 P.M. He stared at the clock, waiting for the important number, the ones that signified a new day and a brighter destiny for the boy. Finally, the electrical red numbers changed to 12:00 A.M.

Harry glanced at his birthday cake on the floor. The one he made every year with the dust.

"Make a wish Harry." He said out loud and blew on his candles.

BOOM! The white ballet he wanted to see had begun. But bright emerald eyes could not see it. For in his room was another person.

- Cambion -

Harry stared at his intruder. The man was devilish handsome. He had shoulder-length black hair with dark blue and dark copper streaks. His piercing hazel eyes were making Harry's inside melt, plump, red, sinful lips were smiling lightly on the exquisite face. The slightly bronzed skin had just the right amount of muscle to make his body lean and beautiful. It also helped that he was thinly clothed by a semi-transparent veil on his privates. To sum it up, the man was sex on legs. Than, those lips spoke in a soft, husky, baritone voice.

"Greetings my descendant, I see that you were the one chosen to receive the family's powers. Do you know what I, your ancestors, am? Do you understand what you will be going through? Do you know what the powers and what they entitle are?"

Harry blinked. No, he wasn't since the journal covered the bare minimum. It stated that the Head of House would usual explain things on the eve on the wizard's or witch's majority. And was one of his ancestor so good looking? Shaking his head, Harry replied.

"Greetings great ancestor. The answer is no to all of your questions. I only know the situation of receiving my magical inheritance since I have read the journal that was stored in the Potter's main vault. My father and Head of House, James Potter died when I was barely fifteen months of age. I have no relatives on the Potter side, thus I was only informed of the bare facts. Would it please you, ancestor of mine, to inform me what none of my relatives could beyond their grave?"

The man looked at Harry. His eyes roaming the boy's body, as if he was undressing the body before him. Harry started to back away, than fell on his bed. Sitting up as quickly as he could, he stared at the person who stated he was his ancestor. Finally, hazel eyes met green one. The man spoke in the same sexy tone as before.

"My name is Samael. My mother was Lilith, the first wife of Adam, and my father was Samael, the Archangel of Death as well as the seducer. I am the one who founded the Potter line and I am the one who gives the power to the one who deserves it in the family. I am an Incubus. If you please me, you will become a cambion, a half-human and half-incubus. Are you ready Harry, son of James, descendant of the Potter line?"

Harry was in shock. He was a descendant of a demon? Not just any demon but the first son of Lilith and Samael, if his memory of the journal was not wrong? But how could he prove himself to his first ancestor? And what powers do a cambion receive? He grew startled at the chuckle Samael made. Had he voiced the last two questions out loud? The demon started to advance to his bed. Like a predator ready to eat his prey. A pink tongue was slowly licking the plump and sinful lips. A fire began to burn through Harry's veins. Than Samael pushed Harry fully on to the bed and hovered over him.

"It is quite simple. All you have to do is please me for now on until dawn and if your, ... "performance" is satisfactory than I shall activate the genes that will make you a cambion and explain to you how to use your powers. But, this will happen only if you are capable of satisfying me."

He ended the conversation with a gentle, nearly chaste kiss. His hands began to creep up under Harry's PJs. The fingers reached their goal, the young boy's nipples. Samael rolled the nubs under his fingers, than suddenly twisted them in two opposite directions. Harry gasped at the sensation. Taking advantage of the opportunity, the demon forced his tongue into the mouth, coaxing the semi-immobile tongue for a battle of dominance. One of his hands abandoned the nipple to palm the younger one's cock through the pants. Harry moaned through the hot kiss. Samael abandoned those lips to go for the neck, alternating between nibbling, sucking, licking and blowing hot air on various places, while at the same time having one hand unbutton the top and the other palming harder the cock. Harry's mind was overloaded by the sensations. It was his first time that he received such pleasure. Moans and mewls were coming from the squirming body.

Once the top was taking off, Samael started to kiss, lick and suck from the neck towards the perked nipples while passing through the collarbones. Once he reached his destination, he started to suck on the right nipple while pinching and twisting the other one with his free hands. The hand that was palming the dick abandoned its first job to take off the pants and underwear. Once that was done, he wrapped his hand around the cock and with a slow sensation, started to go up and down in a jerking motion.

"Yes!" cried out Harry, "Ple, aah, yeeeeessss, please, ... aaah, ... more."

Chuckling, Samael sped up his hand. His mouth switching nubs. The boy beneath him was delicious and a virgin if the reactions he was getting an indication. He stopped his hand-job and started to grind against the body.

Harry arched his back, trying to grind harder, to get more friction between the loin-covered-cock and his naked cock. One of his hands was grasping the bedsheets while the other roamed the body before him.

"More", he begged. "Give me more."

Samael started to chuckle again. 'Oh yes', he thought, 'the boy will be worthy for receiving those powers.' He took off his loincloth, threw it across the room and started to grind harder and in earnest.

"How do you want it Harry?" he whispered. "Hard and fast or slow and long? Do you want to be fucked on your back, on all fours, on the side or on your stomach?"

Harry moaned at what the sensations that voice created in his body. He couldn't understand what the Incubus wanted of him. He just wanted more of this fire and euphoric sensation to continue. His mind was a mess of feelings, no coherent thought could be made.

"ANYTHING," he shouted, "JUST GIVE IT TO ME. GIVE ME MORE."

The older man complied. He made pillows appear and roughly put them under Harry's ass, putting the little pink hole at a more reachable hight. He summoned a belt that was laid across a chair in the room, forced Harry's hand over the owner's head and tied them together. He than proceeded to magically appear lube on his fingers. He grabbed the younger boy's cock, put it in his mouth and at the same time he sucked, roughly put in a finger. Harry moaned and squirmed at the weird dual sensations. On one hand, it felt good that tight heat around his cock, but on the other, it felt weird to have something in his ass.

"Stop moving and relax." Samael said. "it will be more pleasurable and will hurt less if you let yourself go. Trust me, I will make it as good as it is for me."

Harry tried to relax. But it felt weird to have that finger in him. He gasped loudly at what the elder was doing to his cock with his mouth. Samael used that opportunity to shove in a second finger and enlarged the hole. He continued the blow-job. since the boy was a virgin, it wouldn't be long before he came. The post coital bliss will make his muscles relax even more and he will be coming up for a second round with all the hormones he had. He added another finger, looking for a special little place inside the boy. Curving the fingers slightly, he finally found it, while at the same time giving a particular hard suck.

Harry's world exploded into a bright white light. He shouted while ejaculating. Not giving him time to recuperate, Samael withdrew his fingers from the boy. He used magic again to lube his cock and buried himself deeply into his descendant. The boy was so tight and warm. Squeezing his cock so well, giving him a lot of pleasure for a virgin. He waited a bit, giving time to Harry to get use to the intrusion in his body. He didn't had to wait for long. The boy started to move after a little while. Testing this weird sensation that was creating pleasure and pain at the same time.

Samael decided to take things in his own hands. He withdrew slightly than slammed down as hard as he could. The boy's shout of pleasure made the blood in him boil. He continue to ram in the boy as hard as he can, searching for the pleasure spot inside. Harry's moans and mewls made him go wild. Releasing all restraints, the incubus proceeded to go faster and harder.

"YES! FASTER! HARDER! GIVE ME MORE, PLEASE!" cried Harry, while trying to move his body to meet his ancestor's, making it more pleasurable for both of them.

- Cambion -

The fucking continued for two hours. Harry cummed three more times, after he each cum, Samael would change positions, he was now on all fours. His hips were bruised by the hands that held him hard. The pounding hard and fast as ever. A hand suddenly appeared on his dick, jerking it at the same time as the pounding on his prostate.

He came for the last time of that night. His bed wet from the other times. A warmth flooded his ass, overflowing the hole and slowly trailing down his legs. Harry fell down on the bed, followed by Samael who rolled them both on the side, so that he would not crush the younger boy's body with his weight while still keeping his ass full. The demon used his magic to make the belt untie from Harry's hands. Soft kisses trailed up and down between the neck and the shoulder.

"That was incredible." said Harry after awhile.

"Indeed, and I think you will do just fine." Samael replied. "Now rest. For when dawn arrives, you will be turned into a cambion.

- Cambion -

The first rays of the sun started to wake Harry up. He didn't want to leave the cocoon he was in. He borrowed a bit more into the warmth that was moving. Wait, ... moving? Opening his eyes, he met the sleeping face of Samael.

Harry's face began to go red as the memories of a few hours ago came back. Had he acted like that? Had he had sex with his ancestor? And why did he want to go at it again? His cock was beginning to get hard once more and all rational thoughts left when he noticed that no sheets were covering them, giving him an eye-full of the cock in front of him. He hadn't realized how big and thick it was, to wrapped up in the sensations and pleasures the older man gave him. It also was half-awake, begging to be licked and sucked on from the boy.

Letting his instincts guide him, Harry slowly inched his way out of the arms, to slide down towards the cock. He tentatively took it in his both hands, since one could not surround it, and licked the head. It had a weird taste. Salty and a bit sour, but addictive at the same time. He continued to lick the head, twirling his tongue from time to time, and passing over the slit which had pre-cum the was forming.

A groan from the body made him look up. Drowsy hazel met clouded green. Samael groaned again and pushed his lower half upwards.

"Put it in you mouth, just the tip. Do it now." He growled the last part. Harry complied, putting the tip of the sex in his mouth. Again, it was weird, especially how he had to accommodate the thick cock by stretching his mouth. He slowly went back and forth, filling his mouth as much as possible. Saliva dripping from his mouth and onto the bed. The boy tried to remember how Samael did it last night. Recalling that he sucked and moan, Harry tried his best to imitate.

A hand furiously grabbed his hair and pushed him up and down, giving him the rhythm the boy should follow. Samael grunts and groans were encouraging. He was suddenly ripped of from his sucking, curious he looked at his ancestor puzzled.

His eyes met the sight of said-man jerking off, than finally cumming all over Harry's face. Breathing heavily, he than proceeded to take Harry's own hard wood and jerked him of until completion. He too began to breath hard, dark spots lingering in his vision because of the force in which he came.

"That was very good. You learn well and fast. I think that you are more than worthy of the gift I will give you." the demon said, once they both recovered. He had used his magic to clean them up and put sheets around them, cuddling the boy.

"What will happen to me?" Harry asked, curious to what powers he will receive.

"I will activate your dormant demon genes to turn you into a cambion. This will give you some powers which I shall explain what they do and how to use them. But first, let me use my magic to make sure that none of your, *cough*, relatives will bother you during the whole time you are with me." He than proceeded to mutter a few words in a strange language and the door of the room glowed.

"But won't the Ministry know that you did magic in this house? I already got enough trouble with them and once, when a house elf used his magic, they thought it was me." inquired Harry.

Laughing, the incubus replied. "No they will not. For my magic will not and could not be traced unless I allow it myself. You, however, will not have any more problems. Or have you forgotten that you have reached your magical majority, thus letting you use magic without any problems?"

Harry ducked his head and blushed at the remark. Than, he heard weird moans and groans from the directions of his cousin's, aunt's and uncle's rooms. He began to guess just what type of spell the incubus used.

"So, young one, are you ready to become a cambion? It will not hurt but you will feel a strange sensation." Samael told him, ignoring with practical ease the sounds from the house.

Harry nodded, not trusting his voice and still a little weirded out by the sounds he was hearing.

Samael started to chant in latin, but too fast for Harry to discern the words. One hand was on the forehead while the other slowly traced every part of the young body.

Harry began to feel weird. Like he was floating in the clouds, the chanting voice being the only thing he could hear, but it was muffled. Suddenly, images, sounds, smells, tastes and sensations began to fill his head. Information on how to please both male and female were being filed in his brain. How to recognize a shy young girl in bed, to a fierce man that loved to play rough. How to please, tease and get pleasure from various people, staring from a virgin to a prostitute, going through the various degrees of sex people liked.

Once it was over, Harry blinked. "Wow, that was incredible, but what did you exactly do?"

Smiling, the other replied. "I gave you access to your power and turned you into a cambion, a half-human, half-incubus or half-sucubus being. I will now explain what your powers are and how to use them.

First of all, know that you did not receive a magical boost. You received something a bit different. Tell me, what is exactly a sucubus or an incubus?"

"They are sex demons. You have sex with humans in order to survive, feeding on their energy and lust. So my powers are related to sex?"

"That is correct. Your new powers are related with having sex with people. I'm sure you have realized that you have now memories on how to pleasure people?" Harry nodded.

"So how do they work? What exactly are they?"

"You will be able to enslave people, make them do your bidding, get their energy and life-force, steal their knowledge and some other things that you will discover with these powers. I will give you the basics.

First, you know emit an aura of lust. If you want to have sex with a person, you may use that aura to make them fall in lust with you, be them female or male. Once you have them in your bed, you will be able to enslave them for a year.

To do that, you have two ways. Either you make them cum before you while shouting "YES MASTER" and then you make them cum two more times, alternatively with you between each time. They will have to shout those two words every time they cum. The second way is that they will have to shout "I WILL BE YOUR SLAVE, MASTER!" and in the next thirty seconds your sperms must be in either their mouth, ass or vagina. The whole load, not partial. If your sperms leak out from the ass because it overflowed after, it is alright since it has filled the hole before.

Once they become your slaves, they will obey any order you give them, if it is in their possibility, and only for a year. You will have to do the same thing every year to rebound them to your service. To give them an order, all you have to do is make them hard, or wet, and say "obey my will, slave", and give them precise orders that can be done in the future. For example, you have an enemy you want to humiliate. Lure him, or her, into an empty room, will them to be in lust with you and do one of the methods to enslave that person. Than you do what I told you to make them do an order. After stating that order, say that they will have to come in naked and do a salsa in the morning, order them to forget the encounter between the two of you and leave him. That person will forget having sex with you and everything that happened but the orders will stay in his subconscious and he will do as you say in the morning.

You can also order your slave to come for instructions during certain days or hours and they will come, ready to receive any instructions. Or, you can install a password in their subconscious and every time you say it, they will be ready to receive their orders.

Another thing you can do is make a slave enslave another person for the next 48 hours. All they have to do is to be ordered by you to have sex with another person, cum either inside them or around them, make that person say "I will be a slave." and than they cum. After that, either your first slave gives the orders the same way you do except they change the sentence to "here is my master's will.", or you do it the same way as before. Unless you have sex with the second slave they will obey orders only for 48 hours. Any order, after that time limit, will not work. Do you follow?"

"I think so. I remember now how to do it. But will you come and help me?" Harry asked, rubbing slightly his temples to fight a rising migraine.

"Oh, I think you and I will have a lot of fun. Now that you have unleashed your powers, I can come and go on Earth without any problems. You and I will have some crazy nights together since you have more, ... sexual knowledge. It will be too boring for you if you didn't had a partner that can match your skills in bed, don't you think?"

Nodding, Harry replied. "That's true, but you told me about a lot of advantages of my powers but not if their is any limits."

"That's because they are rare. Just keep in mind that any child that is fourteen or under will not be effected by your lust aura and rape victims will not be enslaved. Your direct family won't be affected or enslaved either by you personally, but you can use a first class slave to do it for you."

"First class slave? What do you mean?"

"A first class slave is a slave that will obey you for a year. They in turn can create second class slaves. Those are the ones that will obey you or a first class slave for 48 hours. Oh, I forgot! You can make two people fall in lust with each other if the feelings have a base to begin with."

"Now I understand. And for the rest, do I have to experiment?"

"Yes. And I must be going now. After 300 years being stuck in hell, apart from the rare incursions on earth can make a demon horny. I will contact you first than I will create a device so that we can speak. Have fun now and don't forget to create chaos." He than kissed Harry passionately.

Harry moaned and jerked his lower half forward. After being released from the kiss, he panted. "Don't forget to free my relatives from that spell. I don't want to hear them have sex or masturbate. It's already weird and disgusting enough. And don't take too long before visiting me." he said coyly.

Samael just kissed the boy again. He than waved his hand, muttered a few words and than disappeared from the room. A lingering voice in the room saying : "I promise."

- Cambion -

Well, first chapter is up. It's my first time writing slash so don't sue me, please?

*makes puppy-dog eyes*

On the next chapter, Harry is taken to Grimmauld's Place and starts gathering his servants, starting with some former friends. Will Samael re-appear to keep his promise?

Stay tune for the next chapter in ... CAMBION!