Well, there was a lot of feedback for this story so I spent the last week, bar the time I was stuffing my face for thanksgiving, coming up with Ideas and plans for this story, a lot of Sirius and Mairin Fluff in this chapter. So without any further wait, I Solemnly Swear That I am Up to No Good.

James walked down to the great hall the events of the previous day weighing on his mind. When he reached the great hall, he noticed two things, one Sirius wasn't at the Gryffindor table. Two Mairin was missing from the Slytherin table and her Friend was looking around worriedly. Swallowing his pride, he walked over to Lily, who shot him a glare.

"What do you want Prat?" She asked Haughtily

"Look Evans, I'm here because Mairin's not at the Slytherin table, and I was wondering if you knew where she was?" He said, and Lily looked confused, then she turned and looked to Terra with a questioning look. Terra sighed, and got up, walking towards the two of them. When she arrived, Lily asked, "Have you seen Mairin, James is looking for her."

Terra bit her lip worriedly, then said, "Well, last night she said that she was going to be in the library to try and get her mind off of the fight. She wasn't back by the time I went to bed, and she wasn't there when I woke up. It isn't like her to leave without waking me up."

James paled and Lily became worried, both of who were looking at Terra as if she had given them news of the impending apocalypse. Terra on the other hand was getting a feeling of dread in the pit of her stomach

"I'll ask Professor McGonagall if she knows where she is," James said

"I'll ask Slughorn," Terra said

"Flitwick," From Lily as the moved towards the staff table. As they approached the teachers their faces turned grim.

"I assume you are all wondering what happened to the young ," McGonagall asked, and James nodded his head as the teachers shared a look.

"Mr. Potter, Ms. Evans, , The young Ms. Potter was accosted by several other students last night, and is currently in the hospital wing, If it was not for the timely intervention of then it might have been quite a bit worse." McGonagall said, and James' expression turned to one of panic and fear, the other two gasped in horror.

"As it is, she'll be in the hospital for the rest of the term," Professor Slughorn said, and Terra was the first to recover, and asked, "Will we be able to see her?"

"The Matron said that visitors would be allowed, and before you ask , No you cannot know who is responsible for this, we already have them, and I don't want you going off and getting some form of revenge on them." McGonagall said, as James opened his mouth, closing it again, he practically ran from the hall, running past Remus and Peter as he did so.

"James where-" Remus asked, as he was pushed out of the way by Lily and Terra as they also ran through the halls, right behind James. When James arrived in the Hospital he slowed down and walked slowly towards the only occupied bed in the wing. Lily and Terra walking with them. When the arrived they found Sirius sleeping in a chair right next to Mairin, whose bed was tilted upwards so that she was asleep on Sirius' shoulder, their hands clamped tightly to one another, their wands lying on the table next to them, as well as something else, a golden chain linked to an hourglass with golden sand in it.

"A time turner, of course." Lily said, and Terra looked at her, and said, "Time and place Lily."

They turned to James whose eyes were locked on the tightly held hands of the two sleeping individuals, he turned to the two of them and confused look on his face.

"Is my best mate Dating my Sister?" He asked and both of them looked at each other, then simultaneously hit James on the back of the head, causing him to sputter with outrage. Both Mairin and Sirius jerked awake at the, causing Mairin to hiss in pain. Neither let go of the others hand as the froze and saw who was standing there.

"Hey James," Sirius said, looking nervous, while Mairin was looking anywhere but the others, a bright flush heating up her cheeks.

"So, what happened last night?" Lily asked as James and Terra were about to begin speaking. Mairin and Sirius looked at one another, then begin the story, even giving the names of the two seventh year students responsible. By the end of the story, James looked like he was about to start spewing fire. The matron walked over to them, her face looking grim but, a bit relieved.

"Well, at least you have your friends and Family around you for your recovery," She said and sat down near the foot of the table

"Well, the good news is that you'll be out of here by the end of the term, But the bad news is that your recovery was prolonged due to extended use of the time turner, which has cause most of your organs to become overly stressed by the constant time changes, as a Medwitch, I cannot allow you to continue using the Time Turner. Your going to have to choose some of your classes to drop."

Mairin nodded, and replied, "I was already considering it, the study time for the OWL's was almost enough to kill me." She said, and the Matron smiled, and took the offered Time Turner from Mairin's hand.

There was some silence among those gathered, and then Mairin and Sirius noticed that James was still looking at their still held hands.

"What did this happen?" He asked, and the girls, while they scolded him, were just as intrigued as he was.

"Well, I don't know about Mairin, but I fell for her last year when we went to the ball together, She looked absolutely radiant that night." Sirius said, and Mairin blushed again, her face quickly becoming a dark red.

"Well, when did you start feeling more than just friends feelings for him Mairin, because, I know you haven't told me yet, and have been hiding the fact that you two are together" Terra asked, to which Mairin shot back, "Well, I unlike you am capable of being quiet about my relationships. I don't feel the need to talk about every other dte that I go on. By the way, I think that Cyrus' parents are going to approach yours about a Marriage contract sooner or later."

Terra blushed profusely as Mairin wiggled her eyebrows suggestively, to which Lily raised her eyebrows, "Mairin, stop changing the subject."

Mairin sighed then looked into Sirius' eyes, "I don't know if I could pinpoint a specific moment, we have been spending a lot of time together this year. Around Christmas I started wishing I could…"

Mairin trailed off, turning her head away from Sirius to which James flushed, "Wishing you could do what?!"

"Oh bloody hell, This," She said, and kissed Sirius on the lips, Sirius stiffened, his eyes widening, then he seemed to melt into the kiss. James sputtered from is seat, outrage reflected in his face, Lily and Terra giggling as the scene happened, each of them filing it away for future blackmail material. When Mairin broke the kiss, Sirius looked like he was a fish out of water. He turned his head, and then his eyes widened in fear as he saw the look that James was giving him.

"Mairin, I'm going to go and get us some breakfast, Ok, be right back," Sirius said rather rushed, and stood up, and ran from the room, James about 20 ft behind him shooting curses and hexes as he did so.

"Well, now we know who you've been mooning after these past couple months," Terra said to Lily, a slight smile on her lips.

"And we also know exactly who'll be wearing the pants in that relationship," Was Lily's response and they both laughed as Mairin buried her head in her arm, her already dark blush, deepening even more.

-Time skip- That summer

Mairin was sitting in her room, looking over a Rune array, when a pair of familiar hands covered her eyes.

"Working hard on your runes?" Sirius asked, and Mairin squealed in delight as she spun around and Sirius stole a kiss from her.

"Sirius!" She exclaimed, her voice filled with joy, "What are you doing here?"

His face darkened, "Had another row with my mum, decided that I couldn't stay in that house any longer."

"Oh, Sirius," She said, her voice filling with pity, as she hugged him close.

"Your parents have so kindly allowed me to stay here with you two, they sent me up here to bring you down to the living room." He said, and began to walk away from her, and she ran after him, and the two walked into the living room, hand in hand.

-Time Skip- August 1rst, same year

Mairin and Sirius both were walking through Diagon alley, Mairin with a determined look on her face, and Sirius with a slightly worried one on his own.

"Mairin, slow down, I didn't understand a word of what you just said," Sirius said to her as she stopped outside of Ollivanders shop.

"I said, I don't want to feel helpless if someone grabs my main wand again, I need a spare, and I need to get it today, as well as a couple wand holsters.

"Mairin, that is a lot of money you are talking about spending," Sirius said, looking at her, but he also understood where she was coming from, "But if you want to do it, then by all means, I'll help you do it."

"Silly, I am getting that stuff, you are going to be taking us both out for Ice Cream afterwards." She said, a smile on her face, and in that moment, Sirius would have burned down the world, just to keep her smiling like that at him.

"Now come on, I want to get the business with Ollivander done as quickly as possible." Mairin said, and pulled Sirius into the shop, and the musty dark interior greeted them.

"Hello?' Mairin asked, and then a voice came from right behind them, "Good afternoon."

Both Sirius and Mairin Jumped, and looked behind them to find Ollivander standing there.

"What can I do for you today?" He asked, to which Mairin replied, "I need a new Wand."

"Oh, is your old one not responding to you anymore?" Ollivander asked, to which Mairin shook her head, "Oh, no, it still works perfectly, I just had an incident before the end of school, where my wand was stolen, and the two guys beat me up pretty badly."

"And you wish to have a spare, just in case something like this happens again." Ollivander said, to which Mairin nodded.

"Well, let us see, your last wand had a Dragon Heartstring core, most people stick to the same core type, so that will narrow down the search, I always find it easier to match an older person to a wand. You're a Slytherin, but you have such an obvious relationship with a Gryffindor, I'll bet that causes strife with your housemates."

"Yeah, it does, but they can't control my life, If it means that I am oscastrised from the rest of the house, well, at least I'm being me." Mairin said defiantly, as she locked eyes with Sirius, who was looking at her with Admiration.

"Well, you seem to be confident in your beliefs, and don't mind to be seen as an outsider. I know." Ollivander said, and walked briskly to one of the shelves, and brought out a wand, It was jet black.

"Ebony, Dragon Heartstring, 11 and a quarter inch, reasonably flexible," Ollivander said, offering her the wand. She picked it up, and just like with her previous wand she felt a warm sensation flow through her fingers.

"It fits," She said, a smile twisting itself into existence upon her lips, then she became serious, "With this wand, I am going to need two wand holsters, one for my arm, and the other for my thigh."

"Well, MissPotter, that will be 80 Galleons." Ollivander said, and Mairin took out her bag of money and placed 80 Galleons onto ollivander's counter, and took the wand casing ad the holsters in a bag. The two then walked down the street and sat down at the Ice Cream Parlor, both ordering several scoops in bowls. The sat down outside of the shop.

"So, Mairin, you decided which classes you are going to keep this semester," Sirius asked, and Mairin nodded, "Yeah, I'm going to drop four of them, that will let me get a somewhat normal schedule."

"Which four?" Sirius asked as he ate a spoonful of Ice Cream

"Astronomy, Muggle Studies, Herbology, and Divination," She said, and ate some of her own.

"So your keeping everything else for NEWT's, what are you planning on doing after school?" Sirius asked

"Well," Mairin said, nervously, "I want to be a spell crafter, and a Duelist."

Sirius raised his eyebrows, "Those are lofty goals, But knowing you ms twelve Owl's, you'll do fine. I hear Flitwick is a master duelist, have you talked with him at all?"

"Yeah, we will have lessons in the times I used to have herbology," Mairin said as her face became a little pink, a smile on her face as it came up, then Sirius asked, "So what did you do wrong to get a troll on your Divination Owl?"

Mairin Blushed even further, "I don't want to talk about it!"

"Someone sounds a little defensive." Sirius said, and Mairin punched him in the shoulder as he laughed.

-Time Skip- Christmas of Seventh year

James and Mairin were both in the library talking about what they were going to do when they got home, their cats lay basking in the sun. Everything was perfect for them, James had deflated his massive ego, and had a good relationship with Lily, Mairin and Sirius were still together, and could often be found snogging in abandoned classrooms. They thought their lives were going so well.

That was when Professor McGonagall and Professor Dumbledore approached them, their faces grim.

"James, Mairin, I'm afraid we have some bad news," Professor McGonagall said, tears in her eyes, and Dumbledore continued, "I am afraid that your parent's have been killed, the dark mark was found above the business that your father and mother ran, there were no survivors from inside the building."

James and Mairin looked at the professors, horror, sadness, and anger clouding their faces. Sirius and Lily entered the Library to see Mairin burst into tears and James argrily punching a wall, with a loud crack being heard from his had as he did so. They rushed over, and Sirius hugged Mairin and Lily drew James into a hug. It was going to be a long night for them this night.

Well, that will be it for the hogwarts years, the next chapter will be everything after they were at hogwarts, to when James and Lily die, yes that is going to happen unfortunately, it is a fixed point in the timeline that will have to happen. But until next time, Mischief Managed.