All the thanks are at the end. Please read the author's note at the end!

Chapter Two: Ultimatums

"Did you ensure the Mr. Wood will keep his mouth closed?" he asked Katie as she re-entered the dimly lit room.

"Yes, I did. But on only one condition; you have to drop his detention," she said back.

"Katherine, I can't go around doing that, someone will suspect something. I pride myself on giving all these detentions."

"I know, but it's just this once, I promise."

"Fine. Now you'd better go back up, I'd be an embarrassment for anyone to discover this."

"I know. I'll see you tomorrow. I have your class nice and early," Katie said with a mock excited tone.

"I know, so you'd better get your rest, I plan on a difficult lesson."

"Good night."

"Good night Katherine," he said, kissing her forehead.

She smiled genuinely and left.

THE NEXT DAY, TUESDAY

"So how late were you out Katie?" Oliver asked her.

"Ew, Oliver, shut up. I went back to tell him that I'd shut you up, and then I went to bed."

"With him!"

"NO! My bed, in Gryffindor," Katie said pausing, "You're such a loser."

"Good, that's just unnatural. You two are unnatural." Oliver shuddered. "And I'm not a loser."

"I know, but shut up ok? No one can find out, you said you'd keep your mouth shut," Katie said as she rolled her eyes. "And yes, you are!"

"I know, I'm just saying. No, I'm not."

"Fine. But you're still a loser."

"And you're still a bitch."

"You're an ass. Now shut up before I castrate you."

"Oh, Katie. That was soooooooo mature!"

Katie glared at him as they walked into the classroom and took their usual seats. Oliver and Katie were both seventh year, and both in the advanced class.

"Are you ready for the game later this week?" Oliver asked quietly as their assignment was put on the blackboard.

"Yes, I am. Are you?"

"Of course, Quidditch is my life."

"Yeah, we know," Katie said sarcastically.

"Mr. Wood and Miss Bell, do we have a problem?" the Professor asked them icily.

"No Sir, we don't," Katie answered.

"Actually we do," Oliver started, "Miss Bell is making fun of our upcoming Quidditch game."

"Oliver!" Katie hissed feverishly. She was scared.

"Well perhaps she wouldn't if you spend your time actually working in my class instead of daydreaming about your silly game," the Professor retorted.

"Oliver, stop. NOW," Katie said and kicked him under the table as hard as she could.

"Did you just call Quidditch 'silly'?"

"Yes, I did. Now work!" the Professor yelled.

"You just called Quidditch silly!" Oliver yelled back.

"Detention! You and Miss Bell, tonight, my office, 8 o'clock sharp."

"No! I have practice tonight!"

Katie kicked him again. It had no effect.

"Now you don't. Now get to work before I make you have detention every night this week. You wouldn't want that, with your precious game on Friday."

Oliver shut up.

ONE HOUR LATER

"What the hell is wrong with you Oliver!" Katie hissed as the walked out of class.

"Nothing, you'll get me out of this, won't you Katie? I mean, I do know too much," he said.

"How dare you? How dare you exploit me, blackmail me, like this?" Katie said back.

"Hey, I think it's fair," Oliver said to her, "And don't kick me like that again. Remember who has the power here!"

Katie scoffed and walked away from him.

8 O'CLOCK SHARP

"Enter!" the Professor spoke as Katie rapped the door with her knuckles.

"Miss Bell, Mr. Wood. Right on time."

"I shouldn't be here," Oliver said defiantly.

"Why is that?" the Professor said.

"I know what's going on here, I could spill at anytime. Drop my detention," Oliver spoke clearly.

The Professors' face went white. "Mr. Wood, you're not in the position to argue here."

"Yes, I am. I could go to Dumbledore right now and tell him what I saw the other night."

"Fine. Get out of my sight Mr. Wood, now!" he yelled to Oliver.

Oliver left and Katie ran after him.

"Oliver! I thought we were friends! How could you do this?" Katie said.

"Hey, I'm just looking out for myself. I can't be getting in trouble with the game coming up and all."

Katie slapped him. "You're the biggest jerk alive Oliver. You're a terrible person when you want to be!"

"Oh well, I'm getting what I want!" Oliver walked away.

"Fuck you Oliver!"

"You wish!"

Katie was left huffing and puffing in the dark corridor.

FRIDAY

"Katie, are you ready?" Oliver asked when he saw Katie standing in the change rooms, arms crossed, without her Quidditch uniform on.

"No," was all she said to him.

"What? Get ready! The game starts in half an hour!"

"No."

"Katie!"

"It's time for my ultimatum here Oliver," she said, walking up to him until their noses were touching.

"No." Now it was his turn to say it.

"Yes. You listen to what I have to say to you, or else I quit the team, here and now. And the reserve Chaser isn't near ready for such an important game, even if it is against Hufflepuff."

"You wouldn't."

"Oh I would. And I will if you're going to be like this," she said smoothly, confidently. Oliver didn't like that.

"Fine, what is it?"

"You leave me and him alone. No more mouthing off, no more blackmailing me to get the Pitch for you or to get you out of detention. It isn't fair to me Oliver; you're putting me in a tight corner here. People are starting to talk. The other day I heard some seventh years talking about how you keep getting out of detention. They say that you have someone to get you out of these things. Someone who happens to be close to the Professor," Katie said, her green eyes glaring into Oliver's brown ones.

"Well it's true," Oliver said smiling evilly, raising himself to his full five foot eleven stocky stature over Katie's mere five foot five lean one.

"Fine, I quit. Good luck today Oliver! You'll need it!" Katie said assertively, and made to walk out the door.

Oliver reached out and grabbed her slim wrist with his large hand. "Katie, don't. I need you to play today; you're the best Chaser I have. I'll stop."

"Good. Now if you'll excuse me, I have to change."

"Fine."

"Fine," Katie said and pushed Oliver out of the room.

DURING THE GAME

Katie was flying when her eye caught the Professors' for the slightest second. She smiled internally and flew around the hoops.

"Ooo! Katie, I saw that!" Oliver mocked as he hovered.

Katie's jaw dropped, and she found that fury had cut off her peripheral vision so she could only see him. She was flying wrathfully over to him when a Bludger was hit toward Katie, and hit her square in the back of the head.

Oliver knew that he had gone too far as he watched Katie fall to the ground. He felt as if he were watching her in slow motion, each second causing him to feel worse and worse. She landed with a hard 'thump' and didn't move. His stomach hit the ground with her.

He looked up at the Professor, and saw that his gaze didn't give anything away, which was probably for the best. He looked restricted, but worried enough so nothing was given away.

He looked back to Katie and saw that Fred and George Weasley (his Beaters) were carrying Katie on a stretcher that was conjured by one of the professors. Oliver felt like the worst person on the planet at that very moment.

4 A.M. FRIDAY NIGHT/SATURDAY MORNING

Oliver got quietly out of bed, put on some sweatpants and a warm jumper and walked quietly to the Hospital Wing, where Katie was currently laying.

He had gone earlier with the rest of the team to see how she was, but he felt like he needed to apologize personally to her. He went so early because he didn't want anyone to catch him. He knew Madam Pomfrey would kick him out if she caught him there; he was pretty sure Katie had given her specific instructions to keep Oliver away from her.

He slowly opened the door to the Hospital Wing, and saw that the Professor was there. He was sitting on a chair beside her. They were talking very quietly, but Oliver could hear them well since it was the dead of night.

"I was very worried about you Katherine," he said to her.

"Don't worry Severus, I'm fine," she said back.

"What caused you to go after Mr. Wood like that?"

"He was mocking me again. Mocking us."

"I see. I'll have to speak to him about it."

"Don't, people are already talking too much about him and you, I don't want more."

"Alright then. I should leave you be. You need your rest," he said.

"Ok. Have a good night," she told him.

"You too. I'll think of something to get everyone quiet, don't worry about that."

Katie nodded and he turned to leave.

Oliver quickly slid under a bed to avoid being caught by Snape. He waited until the door was shut and that the sound of his footsteps were gone. He slid back out and walked over to Katie's bed.

Her eyes were shut, but he poked her shoulder anyway.

Her eyes opened and she groaned when she saw him.

"What do you want Oliver?"

"You call him Severus?" Oliver said with a snicker.

"Look Oliver, you mocked me once and put me in here. But if you mock me again, I'll be sure to put you in here."

"Is that a threat Katie?"

"No, Oliver, it's a promise."

"Sorry."

"So what are you doing here Oliver? I'm not exactly in the mood to talk to the person who put me in this position."

"I wanted to say I'm sorry. You're right, I am a terrible person."

"I know. So is that all?"

"Yes."

"Fine, go now."

"Katie, I really am sorry," Oliver pleaded.

"That's nice, but I don't accept. I'm really pissed off at you," she said spitefully.

"Fine," he said, "I'll talk to you later."

"Bye," Katie said and shut her eyes again.

A/N: Before you all review and yell at me for making it yucky Snape, I'll give you my reasoning. I did seriously consider having Lupin instead, but in the end I needed it to be Snape. Lupin is too good of a person to start an affair with a student. Snape is easily manipulated to seem a bit pervy. He's also a huge asshole, which is going to play out well in the future chapters of this story. There are also stories about Hermione and Snape having an affair while they're in school, so this isn't much different, except for the fact that this is Katie instead. You guys have to trust me; this is under the 'Oliver W.' category for a reason. And I also PROMISE that no love/sex scenes will be written about Katie and Snape, they will only be implied, and I don't even know if I will imply them. So if you do take offence to this story, you can stop. But it's true what they say; train wrecks are hard to look away from, no matter how disgusted you are.

Thanks to: Kathy, Black's Daughter, Lindasweden, oliverlover (I'm sorry that I upset you, please keep reading and reviewing!), x3BrokenSonnetx3 (I loved your review, I laughed while reading it!), Jedi Knight Bus (I'm sorry that I really upset you!), Katherine, GredAndForge4President and MarauderQueen.