Of Violent Delights; Mattheo Riddle x Potter!OC

Harry Potter - J. K. Rowling
F/M
G
Of Violent Delights; Mattheo Riddle x Potter!OC
Summary
Mattheo Riddlex Potter!OC“These violent delights have violent endsAnd in their triumph die, like fire and powder,Which as they kiss consume.” -William Shakespeare, Romeo and JulietEuphemia Potter, the older sister of Harry Potter and heir to the Potter name and fortune, enters her 5th year of Hogwarts ready to take on the challenges of O.W.L.s, Quidditch games, and the never ending task of trying to keep her little brother out of trouble. However, one challenge she did not expect is having to perform prefect duties with none other than Mattheo Riddle, the only son and heir of Lord Voldemort. While struggling against forces known and unknown, the heirs of two of the greatest wizarding families in history come to find they have more in common than either would care to admit.
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the champions

31 october 1996
Mattheo’s POV
“It’s not going to wooork!” Granger calls in a sing-song voice as the Twins soak in the scattered applause from the other students around, ready to submit their names. The Goblet of Fire has been set up towards the front of the Great Hall, the tables pushed back and squished together to accommodate the large cup and magical age line surrounding it.
“C’mon, ‘Mione!” One twin groans.
“Have a little faith,” adds the other, which I think is George. Mia has been trying to show me how to tell them apart and if they would stand still I probably could do it.
“She’s right,” Mia says from my side. It’s a Saturday so Mia and I went to Hogsmeade for lunch and as we were entering the castle on our way back, the Twins were running into the Great Hall like they were about to win a race. “You didn’t account for the age line.” The Twins turn to look at her eyebrows raised.
“This right here, is an age line,” Mia says, pointing to the silvery blue boundary that encircles the Goblet.
"Dumbledore drew it himself!" Granger says, seeming very pleased that Mia agrees with her.
“I highly doubt Dumbledore’s magic can be fooled by a dodge as obvious as an aging potion," adds Mia.
“Ah! But that’s why it's so genius, Phe,” Fred says; I can tell it's Fred because he steps so close to Mia that I have to make an effort not to push him back. Fred is much more physically affectionate with Mia than George and while I trust Mia, I can’t help the jealousy that flairs in my chest for the guy that knows my girlfriend better than I may ever be able to.
“Because it's so obvious that they would assume no one would try it!” George answers.
“By all means, if it works then you can brag for the rest of the year about how genius you both are,” Mia laughs at her friends and the Twins high five, drink their potions, and turn to the Goblet, very slowly and carefully stepping over the age line, which bends against the legs but does let them pass. Mia bites her bottom lip as she watches it all happen and my mind wanders as I watch her for a moment, no longer interested in the Twins but rather focusing on my jumping her right here.
My focus is pulled from Mia’s lips as the Twins shout and fly over the crowd surrounding the Goblet and land hard on the floor. I follow my girlfriend as she pushes her way through the crowd frantically only to see Fred and George fighting on the floor as old men. Mia fails to stifle a laugh and I don’t even try not to bust out laughing as the Weasley Twins, in their new found old age, wrestle and yell at each other on the floor of the Great Hall. Eventually, Mia sighs and steps forward, lightly kicking their sides until they release each other.
“Not to say I told you so but-”
“Mia, you gotta help us fix it!” One of them begs, their voice cracking as they stand, rubbing their back as if it pains them. Well, they are elderly now I guess.
“What? How is this my fault? I think you both look rather dashing,” Mia teases, clearly trying hard not to bust out laughing again. “I’ll walk with you to Pomphrey,” she adds before turning to me. “Met up after the feast?”
“Sounds good, princess. Good luck with the grandads,” I press a small kiss to her forehead before she turns and shoves the elderly Twins forward, the three of them leaving with their laughter echoing in their wake.
“Can’t believe you’re dating her,” Draco’s voice sneers from my side and I turn to face my cousin, his hair reflecting the blue flames coming out of the Goblet.
“Bugger off, Draco,” I grumble, turning back to see Krum throw his name into the Goblet as well, all the girls in the room admiring him as he turns and leaves.
“Father was surprised, of course, but sounds like your mother wasn’t. Although, he supposed it could be a very clever ruse. Breaking the heart of The Girl Who Lived, a small revenge for the death of a father,” Draco continues. Like a little brother, he has always loved winding me up, and unfortunately, I’m an easy man to anger.
“You and your father need to keep your noses out of my life,” I snap, turning and shoving the smaller boy slightly, causing him to stumble back a step. “You leave the Potters alone.”
“You can’t tell me what to do!” He cries indignantly but before I can respond, Ella appears by his side.
“C’mon Dray, don’t lower yourself by fussing with blood traitors,” she coos cruelly, her dark eyes narrowed at me angrily. I clench my jaw at the insult but I don’t rise to their taunts.
“Come off it, Elladora,” Enzo says, appearing at my side with his arms crossed. Theo appears on my other side and gratitude floods in me for my two best friends. Ella and Draco roll their eyes and sneer as they turn their backs and leave the Great Hall whispering intently.
“Malfoy-Riddle holidays are gonna get super fun for you,” Theo comments, trying to break tension, and I grunt in acknowledgement.
“Don’t worry about them, Matt,” Enzo says calmly.
“Easy,” I respond simply. “You guys want a smoke?” I ask, wanting to escape to the Astronomy Tower and ignore the rest of the world.
“Yeah, let’s go. Tired of this display anyway,” Theo nods and the three of us exit the Great Hall and make our way towards the tower.

“The time has come to select our Triwizard Tournament champions!” Dumbledore announces, stepping down from the teachers table towards the Goblet of Fire, his hand outstretched as he dims the torches around the Hall.
“Ah, here we go,” Evan mutters, turning in his seat so he can watch, leaning his back against the table. I catch Mia’s eye at the next table over and she smiles, scrunching her nose adorably before turning back around to watch the choosing ceremony. “Once the champions' names are called, please come up to the top of the Hall and proceed into the next chamber and await your instructions,” Dumbledore motions towards a door to the side of the teachers table.
The entirety of the hall waits in tense excitement as the Goblet of Fire begins shining more brightly, so bright it's almost painful to look too closely at it. Suddenly, the flames turn bright red and jump up to a height of a foot or so and a burned piece of parchment flutters down and Dumbledore catches it easily. “The Durmstrang champion is… Victor Krum!”
Applause echoes through the halls for the Bulgarian Seeker as he stands and sweeps up towards the table and is congratulated by Karkaroff before he disappears through the door.
“No surprise there,” Enzo mutters back to Theo and I as the flames just up again and spit out another paper.
“The champion for Beauxbatons is… Fleur Delacour!” A lithe blonde girl stands from amongst the sea of blue silk uniforms, looking quite proud, and saunters up to Dumbledore before continuing in Krum’s path as the student body cheers, especially the boys.
“Oh man,” Evan says as he leans back to watch Fleur as she walks, adding a low whistle to punctuate his sentence. Astoria reaches over the table and smacks Evan on the back of his head. The French girl is beautiful for certain, but it seems I am one of the only ones not fawning over her.
Just as Fleur disappears, the goblet shoots the third and final paper. “The Hogwarts champion is Cedric Diggory!” The Slytherins around me groan, but Hufflepuff explodes in uproar as they cheer for their champion.
“What a pretty boy,” Theo mutters but I’m focused on Mia as Diggory smiles and nods at Mia as he passes her, his eyes lingering longer than on anyone else he passes. I see George and Fred glaring at him and I’m glad someone else agrees that the newly appointed Hogwarts champion should stay far away from my girl.
“That’s it!” Dumbledore yells, the students quieting down as Diggory slips through the door. “We now have our three champions, and I’m sure the rest of you will be very supportive.” The Headmaster falters in his speech as the Goblet begins sparking and the flames turn red and shoot out a fourth paper.
Dumbledore, looking quite bewildered, reaches for the paper and squints at it. He murmurs a name but I’m sitting too far away to hear it but the students up front begin whispering rapidly and looking towards the Gryffindor table.
“... Potter,” my blood runs cold at the last name, although I didn’t catch the first name I’m terrified for Mia. She never said she found a way to enter, she didn’t even seem like she wanted to. “HARRY POTTER!” Dumbledore roars louder, interrupting my thoughts and relief floods my chest, soon followed by guilt.
For a moment no one moves. My eyes find Mia a table over, seemingly frozen in time with wide eyes. She doesn’t move until Harry passes her on his way up to Dumbledore, and even I can tell Harry doesn’t understand what’s happening. At the sight of her brother, Mia moves suddenly, like her brain was struggling to process information but now that it has she jumps up from her seat.
“Headmaster, it must be a mistake!” She calls and Harry looks back to his sister, the fear and confusion in her eyes mirrored in his near identical ones. Mia steps over her seat, trying to go after her brother, but one of the Weasley Twins, I can’t tell which from here, stands and pulls her back. She struggles against him as she watches her brother take the parchment from Dumbledore and walk dazed towards the door. Evan, Enzo, Theo and Astoria all look at me with varying degrees of confusion.
“How did he get past the Age Line?” Evan whispers but I’m not listening. I don’t listen to Dumbledore as he dismisses us either because all I’m aware of is the terror on Mia’s face. Students begin standing around me and I push my way through the crowd to try and reach Mia.
Mia doesn’t stay put though, she begins pushing her way towards Dumbledore, who is speaking to McGonagall next to the goblet. I’m a few steps behind Mia as she reaches the professors.
“Headmaster! How is this possible? Harry didn’t enter, he couldn’t have!” She cries and I can hear the panic in her voice as I step up behind her, the Twins next to me now as well.
“Miss Potter, please,” Dumbledore says placatingly but Mia forges ahead.
“You can’t let him compete! He’s only sixteen!”
“We will do everything we can to ensure-”
“I’ll compete for him!” Mia interrupts again, and I share a glance with the Twins. “I’ll be 19 in a few months, please! You have to let me take his place, he’s not-
“Miss Potter!” Dumbledore snaps, halting Mia in her tracks. “Please, let us handle it and you can come speak to me about it tomorrow if you still wish,” and with that Dumbledore turns around and sweeps back towards the teacher’s table, followed by Karkaroff, Madam Maxine, and an entourage of Hogwarts teachers.
“Professor, please, I’ll do anything if it means Harry doesn’t have to do this. There has to be a way,” Mia begs of McGonagall, whose face is grave. McGonagall reaches out and puts a hand on Mia’s shoulder.
“I know you’re frightened, Miss Potter, but there is not much that can be done tonight. I will speak with the Headmaster and you and I can speak after class tomorrow. For now, just go on back to the common room, and be there for your brother,” McGonagall squeezes Mia’s shoulder and gives her a small, reassuring smile before turning and following after Dumbledore.
Mia watches her go for a moment before turning back to me, Fred and George. Her beautiful green eyes are wide with fear and her bottom lip is trembling.
“C’mon, Mia. Let’s go back to the common room, I’m sure Harry will be back up there soon,” Fred says calmly. The Great Hall is almost completely empty now save us and a few stragglers.
Mia turns her eyes to me, “Will you com-”
“Of course, Mia. C’mon,” I say, wrapping my arm around her shoulder and I lead her out of the Great Hall behind the Twins, the last people in the Hall eyeing Mia suspiciously.
As we enter the Gryffindor Common Room, students shoot us looks, emotions ranging from suspicion to hatred. I mean, every time I’m anywhere near Gryffindor Tower I get plenty of wary stares and glares but I’ve never seen this reaction for Mia. Mia begins to follow Fred and George to the couches where the rest of her and Harry’s friends sit but she looks around for a moment at the rest of the room, her jaw ticking.
“I have to go write to Remus and… I have to go write to Remus,” she says in the general direction of the circle of friends and then continues through the room, her head held high. I follow after her and find her frantically searching through the piles on her desk.
Something I’ve learned about Mia in the last two months, she’s kinda messy. I mean she’s brilliant and seems to have a system, but she’s also a little chaotic. Typically, every surface in her dorm room is littered with books and quills and parchment and the occasional dirty coffee cup. It doesn't help that her friends are in here all the time as well, I'm sure, but she doesn't seem to mind.
I close the door gently as Mia manages to find a quill and some clean parchment. She leans over her desk, perched on the very edge of her chair as she furiously scribbles out a letter.
“Mia…” I say gently, placing my hands on her shoulders.
“One sec,” she mutters, pushing one paper addressed to Remus Lupin, her godfather, away and switching to a second piece of parchment and starting a second letter.
“Who’s Padfoot?” I ask curiously, having never heard the name before.
“Nobody,” she mutters distantly and I sigh, backing up a few steps. I stand in the middle of the room, my mind running a hundred miles a minute at who the hell she’s writing to. I grit my teeth as I try to control my jealousy and worries. After another minute of the scratching of her quill she stands and moves to grab her cloak.
“Woah, where are you going?” I ask, stepping in front of her.
“Owlery, I have to send these,” she says, not looking at me. Once Mia gets her mind set on something, not much can stop her.
“Mia, just stop for a second and think! It’s dark and Harry will probably be back any minute. You can send them tomorrow!” I say, still blocking her path.
“Mattheo, stop! Let me go! They have to know! I need their help!” Mia yells as panic starts to overtake her again.
“No! Mia, just take a breath!”
“Get out of my way!”
“No!” I yell, and put my hand out towards her, without thinking, and she flinches. “Oh fuck, Mia. Princess, I’m sorry. I’m not gonna hurt you, I promise,” I say, lowering my voice and my hand slowly. My heart breaks as I look at my girlfriend looking at me like a cornered animal.
“No, I know. I’m sorry,” Mia says, dropping her gaze to the floor and shaking her head. I hesitantly take a few steps forward until I’m standing toe to toe with her and reach out, lifting her chin so she looks up at me.
“Don’t apologize. What they did to you is not your fault and I shouldn’t have yelled. I’m just… worried about you,” I say earnestly, cupping her face as a tear spills over her eyelashes. “Shit, I’m so sorry,” I whisper, pulling her into a hug and, finally, she relents into my embrace, shaking as sobs wrack her body. “You’re safe, baby, no one’s gonna hurt you.”
After a few minutes, Mia takes a deep breath and steps back, moving to sit on her bed and I follow, sitting next to her. “Padfoot is Harry’s godfather… Better known as Sirius Black,” Mia says quietly.
“What?” I say, surprised and turn to look at Mia.
“I’m gonna explain, it's a long story though, so just hang on, okay?” Mia says, setting the letters down on her nightstand and leaning abc against the headboard. I nod and lean against one of the posts of her bed, watching her intently as she tells me the story of her second to last night of fifth year. How she and Harry found out that Sirius Black is innocent and the person who betrayed her parents was actually Peter Pettigrew, who had been hiding as the Weasley family rat.
“We write to him as Padfoot in case the Ministry intercepts one, so… yeah,” Mia finishes with a sigh and I can’t help but laugh, a memory resurfacing suddenly. “What? I’m telling the truth!”
“No, I believe you, I just… So at that party last year when I asked if you had anything to do with Sirius Black escaping, well I just never thought you actually had!” I laugh, and after a moment Mia laughs too.
“Bloody hell, I forgot about that,” she laughs, but too soon the levity fades from her face, worry creeping back in. I move to lay next to her and pull her into my embrace. She lays her head over my chest and wraps her arms tightly around my waist as I do the same around her shoulder, holding her close to me.
“It’s gonna be okay,” I whisper into her hair, rubbing circles on her arm. “We’ll figure it out.” I hold her like this until her breathing evens out and she slips down into her dreams.

The first thing I notice when I wake, is Mia is nowhere to be found.

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