Howdy!

PolkaDots44 here with my first ever SiriusXOC story!

This story features my own OC, Rima Lupin, twin of Remus.

Disclaimer: JK Rowling owns everything Harry Potter except my OC Rima Lupin.

Hope you enjoy!

Chapter 1: Detention, Lily and MARRIAGE?

Rima Lupin wasn't anything special. She wasn't tall, she wasn't brainy, she wasn't the most beautiful girl in the world… but she was a Marauder. Or a Marauderette as Sirius called her. She'd met the Marauders in her first year soon after her and her twin brother, Remus Lupin, were sorted into Gryffindor. It was like an instant connection between Rima and the boys. The boy she was closest to, however, (apart from Remus) was Sirius.

Sirius 'Padfoot' Black, Rima's best friend, pureblood, run away, Gryffindor, Marauder, blood traitor and above all else, Hogwarts heart throb. Rima could always count on Sirius to be there for her and he had spent many nights with her, sat in the kitchens and threatening to beat up who ever made her cry – not that she cried often – but it was still sweet of him.

James 'Prongs' Potter was another Marauder she was close to. Her 'brother' in every way except blood. At first, Rima felt intimidated by James because of his pureblood status and relation to the other pureblood families, but she soon got over her fear when he invited her to prank Severus Snape. From then on, the two were like peas in a pod and Rima constantly gave him advice with his infatuation with her dorm ate Lily Evans. The first time Rima stayed over at his house Mrs Potter had stolen her away and 'adopted' her for the summer. Needless to say, her own mother was quite jealous.

Peter 'Wormtail' Pettigrew was the least favourite Marauder for Rima. Something about him just screamed 'creepy'. Rima never acted on this though and she always reminded herself to be civil to him and, occasionally, to give him a hint or two on his homework.

Remus 'Moony' Lupin, the elder twin and the greatest brother that anyone would wish for. Despite the fact that he was born fifteen minutes earlier, Remus never felt the need to boss Rima around, something she was immensely grateful for. He always made time for them to hang out and he made sure she wasn't struggling with anything. He'd always been her confidante and vice versa. When he'd been bitten by Fenrir Greyback and endured the pain of monthly transformations, Rima would nurse him back to health and stay by his side until he felt better.

All in all they were a mischevious, immature (with the exception of Remus and Rima, sometimes) brave, hard working group. Most people had the impression that they were notorious pranksters that lived to humiliate and degrade the Slytherins. Rima thought that most people had the right impression. Currently, the group were sat in potions, listening to Professor Slughorn's lecture on the Amortentia potion. Well, Remus and Peter were listening, Rima and Sirius were engaged in an amusing game of 'hit Snape on the head with paper' and James was flat out staring at Lily.

"Score, ten points to me!" Rima sang, high fiving Sirius when Snape turned to glare at them. She got a hearty chuckle in return from Sirius.

"Are you sure you're fifteen RiRi?" Sirius chortled, "Oh wait, I'm sorry, I forgot you were still fourteen."

Rima gave Sirius a half hearted glare and returned to charming paper to fly at Snape. The boys often teased her and Remus for being some of the youngest in their Gryffindor fifth year. Sirius' birthday fell on September 21st and Remus and Rima's fell on March 10th . The two continued their game until Rima gave out a triumphant yell and managed to catch Professor Slughorn's attention.

"Tell me, Miss Lupin, do you find my lesson boring?" Slughorn's voice echoed eerily around the dungeons and from the corner of her eye Rima could see Remus roll his eyes, knowing what would happen.

"Oh not at all, Professor," Rima began, her voice light and sweet. "It's just, whilst the Amortentia potion is a great potion to learn about, I find it isn't vital to my survival outside of Hogwarts. Wouldn't you agree, Sirius?"

Sirius' face broke out into a wild grin as he winked at Rima. "I would indeed agree Rima. You see Professor, my beloved Mother hasn't mentioned anything about ol' Voldy abusing the power of love so I think we're quite safe from the wrath of Amortentia for now. But please, return to your lecture, I know Snivelly over there finds it fascinating."

James was the first person to start laughing like a loon and soon – with the exception of Lily, Slughorn, Snape and Remus – so was the rest of the class. Even some of the Slytherin's cracked a smile at Sirius' words. Rima clapped a hand on Sirius' back and grinned when Sirius threw a rogue arm over her shoulder.

"Detention and five house points from Gryffindor for your cheeky antics Mr Black. Miss Lupin, that will be a detention for you as well and a further ten house points from Gryffindor for questioning my teachings. Now, class has ended and I shall see you all on Wednesday!"

Rima grumbled as she packed away her things and followed Remus out of the dungeons. She linked her arm through his as they stood waiting for the rest of the Marauders to join them.

"Isn't it terrible Remus? All I did was give my opinion and I get a detention for it. I swear Old Sluggs is getting crazier and crazier." Rima wailed dramatically, sticking her tongue out at Lily as the green eyed beauty gave her a frosted glare.

"Cheer up Evans, I'm sure that with your immense knowledge of whatever you'll earn us those house points back in a flash," she exclaimed from her spot next to Remus. She let out a chuckle as Lily stormed off but it soon died down when she heard Remus sigh.

"You really shouldn't antagonise her Rima, she has the right to be angry. You've already lost Gryffindor thirty house points today and it's only second period."

Rima's eyes landed on the floor as she scuffed her shoes and grumbled. "I'm sorry Remus, I'll try and tone it down. But it's mostly Sirius' fault, he makes me do stupid stuff. Uses the imperious curse on me, that one does,"she exclaimed, pointing a stray finger into Sirius' amused face.

"Now now Riri, we all know you'd do anything I say anyway, no need for the imperious curse," he taunted, grey eyes gleaming.

"That's a load of rubbish and you know it Siri!" Rima argued, eyes fierce.

"Don't be embarrassed love, everyone knows you're head over heels for me. I don't blame you either, I think we'd make quite the sexy couple. You with your gorgeous looks and me with my handsome features and charming wit."

By this time Sirius had snaked his arms around Rima's waist and was wearing his signature smirk. Even though Rima knew he was joking, she couldn't help her heart as it started beating wildly. She could already feel the tell tale heat in her cheeks and the butterfly feeling in her stomach.

"Sirius, mate," James started, hand running through his hair, "that's going a bit far for a joke,"

Before Sirius could respond, Remus had taken Rima's arm and started leading her in the direction of the Great Hall, throwing Sirius a dirty look over his shoulder. James and Peter trotted behind them after a few seconds whilst Sirius ran to stand in front of Rima.

"Who said I was joking?"

As soon as the words left his mouth, Rima's heart stilled. He'd made jokes like this ever since the end of fourth year, saying he thought they'd look great together. But still, this time he was out of line.

"James said you were joking, Black." Rima growled, already moving passed him and into the great hall, Remus at her side. She felt James put his arm around her shoulder and was quite startled when it was suddenly ripped away from her. Sirius gently grabbed her arm and pulled her towards him, making sure she couldn't escape. All eyes in the great hall were on them, no one moved, no one breathed. Everyone watched to see what the great Sirius Black did next.

"There's a tradition in my family," he started slowly, eyes locked with Rima's, one of his hands came up to cup her cheek tenderly, "that when a son turns fifteen, he looks for a partner, someone who he thinks will make a great bride for him. Someone they can laugh with, someone they can trust, someone they can love. I used to laugh whenever my dear parents talked about it… but now I want it. I can see it right now. Me and you side by side, blood traitors till the end. You know I'll always be there to protect you and love you. What's better than marrying someone you've loved ever since you met them?"

Rima wasn't sure what to do. She wanted to slap him. She wanted to hurt him. She wanted to trust him. She wanted to agree with him. She didn't know what she wanted. So when Sirius asked the next question, she really wasn't surprised when she fainted,

"So… Rima Maria Sarah Lupin…. Will you do me the honour of marrying me?"

OOOOOOH!

Seems like Sirius has high hopes, huh?

How do you think Rima will respond when she wakes up?

Please R&R! x