A/N: Firstly this is my first ever fanficton, which is a lot more daunting that I first originally thought it would be. Also I'm Irish and I wrote this on a processor that includes English(Ireland) spellings but when I put it on this I noticed that some spellings were different the only thing that I could find that weren't spelled correctly we names in English(Ireland) so some might need to double check.

Secondly: My plan for this story is a long one that goes through three books of both the Harry Potter books and the Twilight books, I'm still unsure how in-depth I'll get because I want to really get into the main character that you'll meet in the next chapter. Her background will make the story even longer so I might make the parts of the books shortish I don't know exactly yet as I'm sure my decision will change and different parts of the books and how they fit with my story.

Disclaimer: I only own my OC characters.

The Protector

Chapter One: The Forbidden Child

In 1685 a son was born to Leo Black and Odella Black (neé Grenville). This child was not supposed to be special, his father Leo was the third son and was never to become head of house and his mother was just a pretty pureblood married off at 15. It was during a party at Christmas Eve did they see that the child was indeed special. Odella was showing off her son to the rest of the family for the first time, women crowded the child held by Odella as Leo's brothers looked from over the women's' shoulders. The crowd panicked the baby and suddenly all of the furniture in to room was levitating as the baby shrieked and cried. Such powerful accidental magic in a baby only a few weeks old is unheard of, gathering the attention of everyone at the party.

Everyone went to get a look at the baby, destressing it even more. Sensing her baby's distress, Odella lifted her baby under the arms and had him face her so that she could place him on her shoulder to cuddle; but as she was doing so the a red light flashed from the baby slicing Odella's throat. The baby was researched my healers and they found that the combination of the Black's and Grenville's family magic created very magically strong children. The healers found that due to the fact that the child was a baby he couldn't learn to control his magic, due to this they couldn't risk the possible deaths of those who we around the baby and the baby was killed. A agreement was made between the two families to never allow their children to marry or become sexually involved with each other. The death of Odella made the Grenville's resentful of the Blacks and so for the next generations they stayed apart and held grudges until it came to a point where the resentment between the families was still present but their reason was forgotten in time.

Hogwarts 1986

Sirius was hidden under James' cloak as her snuck past the fat lady portrait. He took the hidden passages toward the Great hall; once he'd gotten there he went down towards the dungeons until he came to the closest broom cupboard.

Clarissa's breath hitched as the door to the broom cupboard opened; and not for the hundredth time since she'd snuck there she asked herself why he was doing all this for him.

'There she was' Sirius thought. Her wavy brunette hair shun when the light caught her hair when he opened the door. He saw the panic in her blue/green eyes. "Sweetheart it's alright, it's just me." He comforted her as he raised his hand to cup her face.

Clarissa leaned into the touch as he closed the door behind him. She took in a breath as she calmed herself down. "I missed you. It's been too long since I've last seen you." He whispered.

His hand still cupped her face, so he lifted it gently to get her to look at him as he rubbed her cheek with his thumb. She took in another breath as she barely audibly whispered "I missed you too." Clarissa still wasn't used to their relationship. She knew she loved him and that he loved her back; but she still wasn't used to going against her family. The Blacks and the Grenvilles had always hated each other. The Blacks were a dark family and the Grenvilles were a light family. 'He was kicked out. He's different. This is okay. Our love is okay. They will get over it.' She tried to reassure herself.

Sirius leaned down to her as his hand that cupped her face went to the back of her neck as he kissed her softly but with conviction so she knew that he was there for her.

She lost herself in the kiss as she moved her lips against his; she opened her mouth to allow him entrance as he wasn't moving quickly enough for her. She needed him, in body and soul. He chuckled at her eagerness, welcomed from her previous inner turmoil. His tongue slowly moved into her mouth caressing her lips, tongue and the top of her mouth. She moaned from how he worked her. His hands dropped to her ass and hers went into his hair. She tilted her head deepening the kiss as she tugged on his hair.

Sirius lifted her up pushing her back against the door as she circled her legs around his hips. His lips moved to her neck as he gently nipped and sucked. Her breath hitched and his lips moved up to her ear lobe. He racked his teeth against it and whispered huskily "You are so beautiful my Clarissa". He took in a heavy breath before looking her in the eye and whispered with conviction "I love you".

Clarissa stared into his grey, loved filled eyes, 'He loves me. I love him. Why did this, us, have to be a betrayal to my family?' she thought. A minute passed as they just stared at each other, Sirius was getting nervous and a little embarrassed as he she hadn't aid anything and with the presence of inner turmoil in her turquoise eyes. He opened his mouth to say never mind when he just about heard "I love you too".

He seen the love in her eyes and he attacked her lips. His hand moved all over her body as the other kept her up against the wall. She responded eagerly tugging at his black locks. Her hand then went down his chest to them hem of his shirt, tugging it to get him to lift his arms. He complied and she ripped it off him and through it behind him. He took a note from her book and took her top off also. Taking in her chest he kissed her sensually making her feel weak before trailing down her neck, then her collar bone and finally her breasts. Clarissa moaned and arched into Sirius, noticing he was hard she grind against him earning a throaty moan from Sirius.

Clarissa after tugging on Sirius' hair rather hard moved a hand down Sirius' body to his chest and then down further. Sirius' breath hitched as she palmed his hard on in his trousers.

"Sirius please" Clarissa whispered breathily.

"Are you sure?" he asked, this wasn't where he expected to have their first time.

"Merlin, Sirius! I want you now." This was all the encouragement he needed.

Clarissa undid his trousers and pushed down his trousers and boxers with her feet. Sirius put his hand up her skirt and slit her Brazilian knickers to the side and slid his fingers in her and started pumping them. "Merlin, your so wet for me babe." Sirius grunted. Sirius curled his fingers before taking them out earning a throaty moan.

Sirius lined himself up and entered her slowly, when he reached her barrier he stopped. 'Shit. I'm her first. Actually I kind of like that she's untouched. I'll be her first and I'd be damned if I'm not her last. I love her and this I want her to be mine.' He kissed her passionately and pushed through her barrier. Clarissa expected it to hurt but it just felt a little uncomfortable, though she still let out a loud gaspy moan. Sirius stopped once he filled her fully to let her get used to his size, it wasn't long until she spoke "Baby please move". Sirius started and a slow to medium pace. He couldn't get over the difference between making love with Clarissa and having sex with those other girls. Loving someone really made this special.

"Ugh Sirius, faster baby" Clarissa managed to get out between moans.

Sirius gladly sped up the pace and pounded her harder as he grunted her name. Soon he could feel her getting tense and her wall contracting around him as she screamed his name. He pounded as hard as he could and a few trust later his seed filled her. They both slid down to the ground and Clarissa cuddled into Sirius.

"Merlin, babe that was so hot" Sirius whispered before taking her lips with his. He leaned back a little and said "I love you" against her lips.

"I love you too baby." Clarissa sighed.

After five minutes of cuddles and contemplation on what just happened, Sirius asked "Clarissa? Will you be my girlfriend?" He felt her tense.

"Baby I'd love too; but you know I can't have a public relationship with you my family will hate me" Clarissa sniffed. "I love you so much, but I'm afraid I'll lose them and I don't know who I'd be without them." There were tears rolling down her cheeks now as she desperately hoped Sirius would understand.

"I'm sorry Clarissa; but I don't think I can be with someone who doesn't accept me fully and isn't ashamed of being with me. I had enough of that from my parents I don't need it from you too." When Sirius was done he detangled himself from Clarissa and started getting dressed.

Clarissa was in shock as his words sunk in. He had his hand on the door and turned to face her "I love you with all my heart Clarissa, but I can't be with someone who isn't proud to be mine. I don't think we should see each other again, as if we do I'll just fool myself into thinking that the amount of love you have for me is enough and then when I go to leave I'll feel the pain that I feel right now knowing that my love and who I am isn't enough for you to forget a stupid name that I will forever be burdened with." A single tear rolled down his check, which he quickly swiped away before leaving and closing the door behind him.

Clarissa was a mess and hysterically crying. She loved him but she loved her family how was she supposed to choose between them? It was so unfair and fucked up all. She just left the cupboard not bothered to check if it was clear and walked like a zombie towards the Hufflepuff common room. Once she got there she went straight to bed where she pulled the curtains cast a silencing spell. She curled in on herself and cried herself to sleep.

Over the next few weeks Sirius and Clarissa ignore each other, only looking at each other wistfully when their backs were turned. About two months after the best and worst night of Clarissa's life; she collapsed in Transfiguration. Sirius stood up and then sat down quickly, knowing that the whole reason they weren't together was because she didn't want people knowing about them which is exactly what would happen if he ran to her side like he so desperately wanted to.

Clarissa's friends ran to her side. Professor McGonagall went to check on her and levitated her and went to walk out of the room but before leaving she said "I'm taking Miss Grenville to the infirmary, I want you to keep trying to transfigure your wood into a mouse. I want everything to be as it is now except for the wood. Understood?" She gave everyone a stern look, staying on the Marauders for longer than the rest.

Clarissa woke in the hospital wing with a headache. "Good, your awake" Madame Pomfrey said as she walked over to her from behind her desk.

"What happened?" Clarissa asked quietly.

"You fainted in Transfiguration." Madame Pomfrey paused before continuing "I'm afraid there's no easy way to say this darling but you're pregnant."

Clarissa stopped breathing and tears filled my eyes "What? NO your wrong it was only the one time! I can't be." She shouted angrily in disbelief.

"I'm sorry darling but it's true. I know this is hard and unplanned but we need to go over your options." Madame Pomfrey then went on to discuss the options of keeping the baby, abortion or adopting.

"Can I let you know tomorrow before I leave?" Clarissa asked.

"Of course darling take all the time you need. Dinner is on now I'm sure your friends are waiting to see how you are" She replied.

I got up from the bed and walked to the Great hall unseeing and unhearing. I went over to my table and sat down beside my friends Harriet and Kimberly. I stared at my plate the whole time as my friends tried to grab her attention and failing. Unnoticed across the hall, pair of silver grey eyes were looking at her full of concern. After staring at her food for twenty minutes she stood up abruptly before running out of the Great hall. She had to go home but she couldn't tell her parents so that's when she thought of her plan.

The next day before breakfast Clarissa was in the Hospital wing. "Miss Grenville, how are you this morning?" Madame Pomfrey asked eyes full of sympathy.

"Not so well. I've come to a decision." Madame Pomfrey nodded and allowed her to continue "I want to take the abortion potion, but I was hoping to do so at home."

"Well of course I could write your parents a letter notifying them of your condition and wanting to go home." Madame Pomfrey nodded as she went to write the letter straight away.

"No Madame, please! I wanted to tell them myself. They are going to be so ashamed and I want to at least tell them face to face. Couldn't you just give me the permission and I'll tell them when I get there?" Clarissa asked with a hint of desperation in her voice.

"It might be easier if they're forewarned." She pressed.

"Madame Pomfrey these are my personal medical issues that you have no right to disclose with anyone else. All I wish is tell my parent of my situation in the comfort of my home." Clarissa spoke with conviction letting Madame Pomfrey know that there she wasn't to send that letter.

"Alright Miss Grenville, the abortion potion will take one day to complete from breakfast till the next morning you wake up and you to be on bed rest for the duration the potion is in your system. You can use the fireplace in my office to floo home."

Clarissa ran to her room in order to grab her trunk and pack for home. Once done she went down to the Great hall with her trunk in tow. At the entrance she ran into the Marauders dropping her trunk.

"Sorry Clarissa" Remus apologized.

The Marauders were all looking at her now except for Sirius who looked quickly at her trunk before shifting his gaze. James glaring, Peter was looking at her expressionless and Remus was helping her up.

"It's fine Remus, it was my fault I was rushing and didn't bother to look where I was going." I said and picked up my trunk again and went to continue into the hall.

"Where are you going?" Remus asked. He knew that Sirius would want to know but wasn't able to now that they weren't speaking.

"I'm going home, I received some um-news yesterday and I need to go home" Clarissa replied knowing well that Remus was asking on behalf of Sirius.

"Oh, well I hope all is okay." He said as he scratched the back of his head awkwardly.

"I doubt it will be but I'm still hoping" she said teary eyed and walked away not wanting to indirectly talk to the father of my baby about his unknown child.

The Marauders looked at each other all wearing different expressions. James still glaring as he wasn't over the hurt Clarissa caused Sirius, Peter was looking bored, Remus was looking embarrassed for prying into Clarissa business when it was something he perceived to be serious and Sirius was looking concerned and torn.

As they walked back to their common room Sirius finally voiced his thoughts wanting his friends opinion "What do you think happened?"

"Padfoot it doesn't matter she's already proved she's not worth your time so stop worrying about her" James said angrily.

"What the fuck Prongs? How can you say that? If it were Lily, you would be like this as well and what makes it worse is that you didn't even have a relationship with her. She does nothing but insults you and yet you love her but when someone reciprocates my love with a little doubt that girl isn't worth my time?" Sirius asked furiously.

"Lily doesn't know me. She didn't tell me she loved me, sleep with me and then tell me I'm not good enough." James countered annoyed at his friend's comparison of Lily and Clarissa. 'Lily was kind and sweet and would never look down on someone because of their name'.

Remus stepped in trying to keep the peace "I don't know Sirius but it's likely her friends will blab what happened while she gone and you'll hear about it then or if it really bothers you, you can ask her when she comes back."

Sirius nodded and took off in a different direction wanting to be alone.

Once Clarissa ate a small breakfast she went to the hospital wing. She collected the abortion potions from Madame Pomfrey before flooing home. No one was in the drawing room as she arrived she went up to her room to drop of her trunk and change before going to find her parents. Her parents were in the living room chatting and shocked to see their daughter home whilst she was supposed to be at Hogwarts.

"Clarissa what are you doing home?" Her mother asked eyes full of concern.

"I was sent home due to my condition" Clarissa started "I'm depressed and I wasn't recuperating well at Hogwarts so I was sent home" she lied.

"Oh darling, why are you only telling us this now? We always write you could have told me then that you weren't copping." He mother exclaimed, hurt that her daughter hadn't turned to her when it was obvious she needed help.

Clarissa was delighted with her mother's response. Her plan was playing out perfectly. "I'm sorry mother. I know I could have turned to you but I was ashamed; but I'm here now and could really use that help" I forced myself to cry thinking about the real situation I was in.

After Clarissa and her parents had talked Clarissa went straight to the family library to see if she could find the origin to the feud as if she could do that, then hopefully she would be able to argue against whatever happened and manage to convince her family to accept Sirius. If she could do that then her child would have its father and she also may gain her love back.

After three days of research she found the tragic story of Leo and Odella Black. It hit her like a ton of bricks but she loved her baby and would do everything she could to save it. She had a plan, it would be a lot of sacrifice but her baby would be safe.

Sirius scrunched up the letter and threw it into the fireplace in a rage. This was the third private investigator he hired and he even specialised in search the muggle world. It had been 9 months since Clarissa went home, no one knew where she was. Her parents confirmed that she was home for 6 days before she packed half of her things and took half of her trust with her; they said her reason for going home was because she was depressed and needed to heal at home. Madame Pomfrey denied this and stated that that was not the reason but that she also can't remember the reason. Which meant that Clarissa had obviated her or if she was kidnapped that person had. 'I miss you my love, I will find out what happened'. Sirius thought which such conviction and determination that to him there was no question in his mind of it being true.

A/N: The part about when I killed the baby off one I apologize for how I wrote it but to be honest I honestly don't know how people can kill children so I'm afraid it isn't that brilliant I'm afraid.

Also in Ireland we are currently trying to get our Government to repel the 8th amendment which disallows abortion except for in the cases when there is a problem and not killing the baby will kill both the baby and mother or when the mother is in a state in which considering taking her life or if you were raped by a relitive. I'm pro choice myself but this story is in England and America primarily so I wanted to convey that message of pro choice, that women should have the right to decide what their bodies undergo.

For those who don't like the "mine" comment that passes Sirius' thoughts; I wrote it because in my opinion possessiveness like 'mine' and saying 'yours' during sex is extremely intimate and conveys deep meaning but also it's kind of erotic. I can be a little contradicting when it come to my views on possessiveness as I find that possessiveness and obsession can be intertwined and obsession is unhealthy.

Review I need to know if I'm actually good at this and continue or just keep my stories in my head.

Le grá ,

Emer x