Hmm… I just realized I haven't put a disclaimer on this story… SO, I don't own any of the characters, please don't sue me. I don't have any money.

Thanks to:
TooSweet4Words – thanks for the review
Kit Merlot – Well, I guess you'll have to see ;)
Megan – thanks, I'm glad you liked it
Kathy – I loved your review, I appreciate your comments on what you like!
SashaBT245 – all I could do was blush when I read your review
Armr4sleep16 – Thanks, and I'm definitely not even close to giving this story up!
Oliverlover – umm… thanks? I'm happy you don't think it's crap now.
Simplyslow – interesting? Good or bad interesting?
Swimgirl – my thoughts exactly.
Selenes Song – I think you're right…
HyperSquishy – I know, I know, it will be soon enough.

A/N: This chapter is smutty and contains several F-bombs, so if you're against this, wait for the next chapter.

Chapter Five: Hot and Cold

SATURDAY, MID MORNING, CHANGE ROOMS

"Yes! I want you," Katie rasped.

Oliver took his shirt off quickly. Katie immediately started to kiss his chest, shoulders, whatever she could get her lips on. Oliver started to pull at her tank top and Katie tore it off. She stood in her bra and pants as Oliver kissed her all over.

"Oh God, Oliver! We can't do this!" Katie said and pushed him away.

"What the hell!" Oliver said agitated.

"We just can't! We don't even like each other that much!" she exclaimed in anger.

"Well I beg to differ Katie," he said, his eyes turning dark and angry.

"If Snape finds out about this, it'll be our heads!"

"Did you forget what I said 5 minutes ago?" Oliver asked, his voice raised.

"No! We just can't!" Katie said and picked her top up off the floor, "Come on, we have to get to Hogsmeade, we need that stuff for potions."

"What! NO! You're not going to do this!" he said.

"Do what?"

"Do you see this Katie?" he said and pointed to his erection, "This is going to be painful if you don't do something about it!"

Katie sniggered.

"Well, I'll leave you for a few moments, and then we can get going," she said.

"No."

"Well then, I guess you'll just have to deal with it, now won't you?"

"Katie, please. You got me all worked up. Now I'm horny as hell," he said, a pleading tone to his voice.

"It's not like I'm not horny!"

"Then let's go! Anywhere you want! The shower, the bench, the pitch…"

"Oliver!"

"Please?"

"Would you just think about it for a minute? If we do it, it'll be all awkward between us, and Snape will definitely catch on, he's not an idiot…"

"Could have fooled me," Oliver mumbled unhappily.

Katie glared at him. "And then he'll fail you so you can't graduate. Is that what you want?"

"Then break this travesty of a relationship up and be with me!" he exclaimed.

"Be with you? Like actually be your girlfriend?"

Oliver nodded.

"Ha! You're a man-whore! You couldn't stay with one woman to save your life!"

"You don't know that!"

"Hmm… Let's think… When was the last time you dated someone for longer then a month?"

"Ok… so you're right, I haven't been in many long term relationships. But I've been with a lot of girls, I can make you orgasm like there's no tomorrow!"

Katie's jaw dropped and her cheeks went bright pink.

"I… uh… umm…" Katie stammered.

"Can't say no to that, can you?" Oliver said with a laugh in his voice.

She regained some composure.

"Well it is awfully tempting," Katie said scathingly, "But I do enjoy a long term relationship! It's nice to know you have someone there for you."

"I can be there for you."

Katie snorted.

"I'm serious Katie!"

"Is this some sort of act to get me to sleep with you?" she asked.

"No!"

"Then what is this? Why are you saying this?"

"Because, Katie, I fucking like you! A lot!" Oliver yelled to her. He ran his hands through his hair in a frustrated sort of way.

Katie stood silently. She swallowed and looked up at him, as if to see if he was being sincere.

"I do like you, I really do. So you can wipe that look off your face," he said dolefully and turned away from her. He picked up his shirt and put it back on.

"Here," he said and gave her shirt to her, "I'll see you later, I'm going back up to the tower."

Katie still stood there.

"What? What is it? I don't know what to say to you," he said quietly, "I tell you I like you and you just look at me like I'm a big fucking joke."

He started towards the door.

"Wait Oliver," she said and extended her hand to grab his arm, "Come back."

"What do you want?" he asked looking at her bra clad torso.

"I'm sorry. You really caught me off guard! What was I supposed to say? We fight like cats and dogs, leading me to believe that you don't like me at all, and then we're here, getting ready to have sex in the shower and you tell me you like me and that you want me to be your girlfriend? Can you really blame me for being speechless?" she said anxiously.

"No, I suppose I can't," he said crossing his arms, "But I don't ever put myself out there with a girl. EVER. And when you just stand there saying nothing, it spells rejection to me!"

"I never rejected you though Oliver! I do like you! I never thought it would be possible, but I fucking like you too! I want to be your fucking girlfriend, ok? But there just the little issue of my other boyfriend! You know, the Potions professor!"

"Then tell him it's over," Oliver said.

"It's not that simple! I do have feelings for him."

"Well, you have feelings for me, so what are you going to do Katie?"

"I don't know!" she said and pulled at her brunette locks.

"Why can't you make him break up with you? You know, piss him off until he can't take it anymore."

"Because. He knows Occulmency. He could go inside my head anytime he wants. He'd know I'd be acting. He's been teaching me how to do it, but I'm not near good enough to stand up against him yet."

"I know for a fact you have to keep eye contact, so just don't look him in the eye that often."

"Oh yes, because then he won't realize a thing!" Katie said sarcastically.

"Fine. I'll tell him myself!"

"Really?" Katie asked hopefully.

"No! That was the point where you were supposed to say 'oh no, no. I'll do it, don't you worry about it.' I can't stand being near the bastard," Oliver scowled.

"Oh. Never mind then."

Oliver nodded. A few minutes of awkward silence followed.

"So… you've never really put yourself out there?" Katie asked in an attempt to start another conversation.

"Nope. I can't stand being rejected."

"I see."

"Mm hmm."

"Well, this is awkward."

"You can say that again," Oliver said and looked at the ceiling.

Katie seemed to realize she was still only wearing her bra. She crossed her arms over her chest in a vain attempt to cover herself. All she accomplished was squashing her breasts together, making them more obvious.

"Sorry about turning you on earlier. I imagine it isn't fun to get turned on then left in the cold," she said softly.

"No, no it isn't." He couldn't take his eyes off Katie's chest.

"Would you stop that?"

Oliver continued to stare.

Katie glared at him.

In a sudden and bold move, Oliver walked to her and kissed her roughly.

She fought at first, but gradually let Oliver keep kissing her.

"I want you Katie," he said as he finally tore his lips away from hers.

Katie didn't answer. Instead, shepulled Oliverinto an embrace and kissed him back.

Katie removed Oliver's shirt, and let her hands roam his chest and back freely. She moved her hands to the button on his pants and struggled for a moment, finally undoing it. She undid the zipper and his pants fell to his ankles.

"So you want to? For sure? No turning around and turning me off?" he asked breathlessly.

"Yes! I want to!" she said.

Oliver stepped out of his pants as he kissed Katie. Her hands slipped down his boxers and she grabbed him. She started stroking him, running her hands up and down the length of his shaft, causing him to moan loudly.

"Mmm, you like that?" Katie purred into his ear.

"Yes," he said huskily, grabbing Katie and pushing her against the wall, "I love that."

She giggled seductively. She felt like her heart was beating so loudly that Oliver could hear it. Pure lust was running through her, and she was having trouble thinking straight.

"I think it's time these came off," he said and removed her pants.

They stood in the change rooms, half naked, Oliver pressing Katie up against the wall, grinding against her. He wanted nothing more then to be inside of her at this moment. His breathing was ragged and his voice husky. He grabbed her ass and she wrapped one leg around his waist, and she jumped up, wrapping the other around him.

"Let's hit the showers," she said kissing his neck.

"I thought you'd never say it," he said and started off towards the showers, still carrying Katie.

"What about our clothes? The door?" Katie asked suddenly.

"I'll get my wand," he said and let Katie down.

He picked his wand out of the back pocket of his pants, locking the door and throwing the clothes (his and hers) into his locker, locking it with his wand as well. He turned back to Katie.

"You look so hot," he said and tugged at her tiny white thong. He picked her up again.

"Thanks," she said and wrapped her legs around him.

"So… To the shower?" he asked as he started kissing her neck.

"Please," she replied.

Oliver didn't need to be told twice. The headed for the nearest shower stall, shut the door and sealed it, also placing a silencing charm on it.

Katie turned the water on, and a stream of delightfully warm water fell over them. Oliver held Katie closer to him, capturing her lips with his. He unhooked her bra and let it fall to the ground. He massaged her breasts and then let his lips fall from hers and down to her breasts. She ran her fingers through his hair wildly, moaning his name.

She unwrapped her legs and let her feet fall to the floor of the shower. She put her hands on the elastic band of Oliver's boxers and pulled them down quickly, letting herself to fall to her knees.

Oliver leaned against the wall, enjoying the feeling of Katie's mouth wrapped around him. He felt every muscle tensing up especially the one that Katie was sucking on. He loved the feeling of her tongue swirling around him.

"Stop Katie," he said gruffly.

"What is it?" she asked, "You don't like it?"

"No, I love it," he replied as she stood up, "I want to be inside you right now."

Their eyes met with equal passion. Katie smiled and removed the small piece of white fabric separating them.

She stood up and their eyes met. His eyes were dark and intense, full of passion and desire. Her eyes were flirty and had a 'come-hither' look to them. Both were breathing shallowly and rapidly.

He pushed her up against the wall, lifting her up as he did so. Her legs wrapped around him once again and she felt his fingers slide up inside of her. Her head fell back against the wall in ecstasy, moaning softly.

"You really want me, don't you, love?" he said as he pushed his fingers even deeper inside of her wet center.

"Don't tease me anymore Oliver," she said into his ear and softly biting down on his earlobe.

He nodded and with that, he slid himself inside of her.

They moaned in unison.

Katie's nails sunk into his back and shoulders as Oliver thrusted into her.

"Harder," she said and she kissed his lips roughly.

Oliver obeyed. He thrusted harder. While he did so, he moved one of his hands down, searching for the little bundle of nerves. He wanted to push her over the edge and make her scream his name.

Their bodies moved together, their breathing in sync. Their lips were crushed together, Oliver's tongue occasionally finding its' way into Katie's mouth.

Finally finding what he was looking for, he rubbed her gently at first, gradually going faster and harder, mimicking his thrusts.

"Oh God Oliver!" she moaned loudly.

"Cum for me baby," he said and kissed her neck.

He felt Katie starting to shudder. He could feel her heart beating fast. He pressed and rubbed for a minute more, at last getting what he wanted.

Her muscles contracted around him, and she yelled his name repeatedly. Her nails dragged against his back. With one final thrust, he came with her.

Katie's head fell back. She was breathing hard and her eyes were shut.

"That felt amazing," he said, resting his head on her shoulder, trying to catch his breath.

"I know," she said and kissed the top of his head.

The warm water was still running over them, inducing a sleepy state.

Oliver lifted his head and smiled lazily to her. "We should do that again sometime."

Katie laughed softly. "I think we should too. You were right about what you said."

"What I said?"

"About the orgasm," she said smiling.

"Oh yeah…"

Oliver pulled himself out of Katie, and he let her down gently, but not letting her leave his arms. She turned off the water.

"So what do we do now?" she asked.

He kissed her. "I don't know. Maybe get dried off and dressed?"

"We probably should, people are probably wondering where we are." She kissed him back.

SATURDAY EVENING, COMMON ROOM

"Where the hell were you?" Angelina asked when Katie and Oliver finally walked into the Common Room

"What are you talking about? After practice, we went to Hogsmeade to get our Potions supplies for Tuesday," Katie replied holding up several bags from the Apothecary.

"Really? We searched the village for you two and couldn't find you anywhere!" she responded.

"Well we were there," Oliver told her firmly.

"We have to get to work on this, so if you'll excuse us," Katie said and walked briskly away from Angelina.

"How are we going to hide this?" Katie whispered to Oliver as they sat near the fire.

"We don't have anything to hide Katie!" Oliver said, slightly offended, "We're together, remember? I like you, you like me… Is this making sense to you?"

"Maybe you don't have anything to hide!" she hissed, "But I do. And don't patronize me Oliver. I don't appreciate that."

"What? You're not going to break things off with him now?" Oliver asked, his voice and eyes icy.

"Don't do that. Don't corner me. Trust me; I know he's going to do it to me. I don't need you doing it too!"

"Whatever! He'll just get all red in the face and tell you to get out!"

"You don't know that! I know he likes me just as much as you do! He's a Slytherin! He knows how to manipulate and twist people."

"Fine. You know what? Fuck you, I'm going to bed," he said irritably and stomped up the steps.

"You already did that, dear!" she yelled to him. She sat back in the chair furiously. How dare he talk to her like that?

MONDAY MORNING, GREAT HALL.

Oliver wouldn't even as much as look at Katie the rest of the weekend or Monday morning. He couldn't believe that he had put himself out there to her, and she had rejected him after she'd gotten what she wanted – a good lay.

As the owls flew in for the morning post, he stole a glance at her. He watched a black owl land on the table and dropped a scroll of parchment in her hand. He scoffed and looked down at his scrambled eggs.

"Fucking Snape," he mumbled under his breath.

Katie noticed Oliver mumbling under his breath, and she knew that he saw the letter.

She opened the scroll and read Snape's note.

Katherine,

Please meet me tonight, 8 pm, the usual spot.

-S

She quickly folded the note and shoved it in her pocket. She didn't really want to, but it looked like Katie was going to see Snape tonight in his office.

MONDAY NIGHT, SNAPE'S OFFICE

"Hello Severus," Katie said as she slipped in the door.

"Katherine," he said softly and rose from his seat, kissing her on the cheek.

She stood stunned for a moment. What the hell was going on? Why was he suddenly being so affectionate with her?

"Severus? What was that for?" she asked astounded.

"You're my girlfriend Katherine," he said with a smile that made her uncomfortable, "I'm not allowed to kiss you?"

"God, he sounds like Oliver," Katie thought quickly.

"Of course you are," Katie said blushing. She didn't like that look in his eyes. He knew something. "Why did you want me to come here?"

"I wanted to see how things are working out between you and Mr. Wood," he said in a faintly sinister tone, "Sit down." He pointed to a green leather chair.

"They're fine, really," she said and quickly looked at her feet as she sat.

He knew. The thought crossed Katie's brain and she grinded her teeth. He knew, and he was cornering her.

"That's good to hear," he said and sat on a chair beside her.

She looked up and nodded quickly. She averted her eyes to her feet again.

"What's wrong my dear? Is there something the matter?"

She shook her head. She felt his eyes boring into her head.

"Stop that Severus, please!" she said.

"Then look at me!" he snapped.

Katie quickly emptied her head of all emotions and looked up.

"What?" she snapped back.

"You've done something, I can tell. But you're a clever girl; you've been practicing what I've taught you. That's why I adore you, Katherine, because you're a clever, loyal girl."

Katie swallowed heavily, keeping her emotions and thoughts at bay.

"And you wouldn't hurt anyone," he leaned over and kissed her sternly, "Now run along up to bed, I'll see you in class tomorrow."

"Alright, good night Severus," she said and started to rise.

"By the way, did you get everything done for your potion?"

She nodded, raising herself to her full height.

"Good," he said and rose, "I'll see you in the morning. Good night Katherine."

"Have a good night," she said and kissed his cheek softly.

She walked out the door and out into the hall. When she was far enough away, she broke out in a run.

"Oh SHIT! He knows! He knows and I don't know why he didn't do anything. This is bad!" she thought as she ran.

MONDAY NIGHT, COMMON ROOM

"Back from fucking your boyfriend Katie?" Oliver asked snidely as she entered the room.

"Go to hell Oliver," she said, gasping for air, "He knows."

"He knows?" Oliver repeated.

"Yes. I could definitely tell, he was being way too nice to me. He didn't say anything directly, but I'll bet my life that he knows."

"What do you mean he didn't say anything directly?"

"He said I was clever for practicing Occulmency, and then went on to say I was a loyal girl who wouldn't hurt anyone!"

"Maybe he was just complimenting you, that doesn't prove anything!"

"Snape, compliment someone? Think about that Oliver!"

"Sorry."

Katie fell onto the couch with Oliver. They sat and looked at one another. Katie leaned in and kissed his lips softly.

"What are you doing Katie?" he asked her gently, pushing her away.

"I'm kissing you Oliver. I'm your girlfriend," she replied, her eyes looking sombrely into his.

"No, you're not," he said.

"What? You said earlier…"

"I know what I said earlier, but you're still with him. I want you all to myself," he said and got up, "I remember this morning, and it was great Katie, it really was, but I'm not going to compete with him for you. If you really want to be with me, you know what you have to do."

"Oliver, come here," she said as he started to walk away from her.

"Why? So you can seduce me, fuck me and reject me again?" he said cruelly and walked up the stairs and out of sight.

Katie was left, shocked, on the couch, her tears threatening to fall. She swallowed heavily. She hated the look Oliver gave her. It was so cold, so icy.