Author's note: Thank you again for all the encouragement you are showing this story through favs, follows and reviews!

It made me write this chapter in record time! I hope you will enjoy it:-)

Warning: more CP in this chapter. (CP will not be the main focus of the story, but for now, the plot demands it)


#-&-HP-&-#

"DADA is with Slytherins this year." Ron screwed up his face in annoyance as he read the syllabus while chewing on the remainings of his breakfast.

"Snape AND Slytherins... Wonderful!" Harry agreed grumpily, "Just the way to ruin my favorite subject."

"Actually this year Slytherin has the most students pass their O.W.L.s for it, even more than Gryffindor," Hermione pointed out.

"Why would they even take Defence Against the Dark Arts? They should have some private Applicable Dark Arts class, instead!" Ron sneered in response and Harry chuckled at his friend's accuracy.

"Ron, not all Slytherins are supporting Voldemort."

"Don't go there Hermione, I'm yet to find a single normal person in that House. Ginny ended up in the hospital wing on her very first Potions lesson, cause some bitch spiked her potion, and it blew up in her face!" Ron said hotly.

"What happened?" Harry asked curiously.

"She said it must have been Nalanell Cross, her parents were rotting in Azkaban till recently and now she is going out of her way to prove to her folks that she is a good Death Eater material," Ron replied with a sneer. Harry vaguely remembered Nalanell to be a petite raven-haired girl. He had never really interacted with her, except for the occasional glare she sent him if he dared to look in her direction, which was not uncommon among Slytherins. But he recalled that Ginny was complaining about the nasty girl quite often.

"Let's go, or we gonna be late," Hermione said, grabbing her books.

When they entered DADA classroom, most of the Slytherins were already present and indeed they were a majority in the room. Malfoy wasted no time in blocking their way.

"Oh look, it's the Boy Who Lived with a Godfather Who Died," Malfoy taunted rubbing his eyes with his fists and making sniveling sounds.

"Shut the fuck up, Malfoy!" Harry snapped sharply and shoved Malfoy out of his way.

"Ten points from Gryffindor, Potter," came the silky voice from behind him. Harry groaned as he turned to face Snape. Snape looked at him with a raised eyebrow daring him to talk back. Harry clenched his fists but kept quiet. To think I almost looked forward to the bloody lesson.

The three of them took seats in Gryffindor corner of the classroom and Snape began the lesson with a long lecture he always gave in Potions, about the importance of the subject and studying and N.E.W.T.s and blah blah blah.

Harry was sulking over the points Snape has taken. Snape must have heard what Malfoy said and yet only punished Harry, as he always did. Why did Harry expect that being Snape's slave gave him any privileges? "Privileged slave" Harry snorted inwardly at the thought. If anything, it's an oxymoron. Besides, Snape has always treated Gryffindors, and especially Harry, unfairly while favoring his own House. Harry was used to it. He didn't care. Except now he did! Fucking bond! Harry then realized, that being ordered around and walloped by the man was not the worse the bond was bringing into his life. The "eager to please" part was even more disconcerting! Not only he craved attention of his Master, which was beyond humiliating to admit even to himself. Now he also actually cared about Snape's opinion or his treatment, which was incredibly frustrating. He wanted to impress the man and was happy that this year Snape was teaching a class that Harry excelled in. But why should I want to impress the git?! He has been so...

A small paper ball hit Harry in the forehead cutting his line of thought and bringing him back in the classroom. Harry noticed, that all faces were turned to him, some gloating, some with pity, and one with clear displeasure written over his face. Harry felt a tinge of the headache as he looked at Snape sheepishly.

"Well, Potter, we are waiting," the man said with a sneer.

"I don't know the question, Sir" Harry admitted his cheeks flushing slightly. Again the situation was so common, and yet it felt more humiliating and uncomfortable than usual.

"Another 10 points from Gryffindor, Potter. I see you are determined to bring Gryffindor in negative numbers this year," came Snape's sarcastic reply, which brought snickers from a couple of Slytherins. Harry felt his temper rising. He was just so angry, the lesson barely started and he already lost 20 points because Snape was being a git. A tiny voice in the back of his head told him to calm down, but he ignored it.

"Of course, Sir. How else would Slytherin ever stand a chance of winning a House Cup? Watching all those sad faces year after year..." Harry trailed off giving a mocking sad smile to the glaring Slytherins. Then he felt his headache increase to an unpleasant throb, he turned to face Snape again and saw a carefully masked fury behind what appeared to be a pleased smile. He gulped knowing, that his Master was anything but pleased with him.

"Another 10 points from Gryffindor, Potter. Your help might be appreciated, but your insolence is not. And it stops NOW!" Snape's voice held so much authority and dominance, that Harry felt his knees buckle.

"Yes, Master," he replied automatically feeling the wrath of his Master through the bond's punishment. Then he realized his blunder and his heart skipped a beat.

"Detention, Potter!" Snape barked livid, crashing his hand against the table with a loud thump. The classroom went very still with dead silence. Slytherins were giving Harry curious looks. No one dared to mock their Head of The House so openly and in such fashion. Calling him "Master" as a reference to how Death Eaters addressed the Dark Lord, Potter must have had balls of steel! Either that, or he was suicidal. Gryffindors were shaking their heads giving Harry the "what the fuck?" and "what were you thinking?" looks and only Ron and Hermione understood the nature of Harry's unfortunate slip of the tongue.

Snape was trying to salvage the situation. Of course the stupid brat would work himself up to completely lose control! Snape knew, that he himself helped to escalate the situation, but he couldn't exactly start treating Potter differently just because the bond might punish him. He trusted the boy was smart enough to realize, that in public setting it was even more imperative for him to be on his best behavior and not call attention to himself. Though Snape had to admit, that his command held so much dominance, that it was a surprise Potter didn't end up crawling on his knees. So he too was at least partially to blame. Although not like HE had any more experience with being a Master than Potter had with being a slave.

"For a week," Snape added watching Harry wince in pain. "You will report to me every day at seven sharp for your detention, where you will be reunited with your favorite toothbrush and lots and lots of cauldrons in need of your attention. Mark my words, Potter, I will have you lick them clean with your tongue if that's what it takes to teach you proper respect!"

Harry sank in his chair miserably. Of course, he will get punished for something that wasn't even fully within his control! And with a week of detentions! There were two Quidditch practices scheduled for this week and he was a captain of Gryffindor team now. He can't skip! But there was no arguing with Snape. His head was already throbbing painfully and it will be hard to focus on the lesson. He gave Snape a pitiful look, to let the man know his head was killing him already. Perhaps he will lay off of him now.

"Mr. Longbottom, please repeat the question I asked for Mr. Potter."

Neville gave Harry an awkward smile. "Why should we only use spells, that we have fully mastered, in a battle?"

Harry felt stupid as he realized that Snape wasn't actually picking up on him, he was merely reviewing the lesson he told him during the punishment two days ago. He asked Harry because Harry should know the answer.

"Because you should be able to rely on your spells. If you cast a spell, that won't work, you are giving the advantage to the enemy to retaliate before you can cast another spell," Harry answered, the pain in his head easing up somewhat.

"Correct. This year we will be focusing on non-verbal spells. Mr. Malfoy, what is the advantage of non-verbal spell?"

"Your adversary has no warning about what kind of magic you are about to perform, which gives you a split-second advantage."

"Correct, 5 points to Slytherin."

Harry groaned inwardly. Would he have gotten points if he was paying attention and answered his question the first time Snape addressed him? Maybe not, but it would certainly save him a throbbing headache, 20 points and a week of detentions. Not to mention, that he was probably still in for some walloping if he was to survive the day. Harry felt very sorry for himself.

"As you can see, in the battle, it's not only about spells or power, it's about advantage and how you can gain it. Having an upper hand by knowing your opponent's weakness or having an element of surprise can be the deciding factor," Snape lectured as he was walking through the classroom, checking on the miserable Gryffindor with a quick side glance. There was no way for Snape to ease his headache, Harry couldn't properly apologize and Snape couldn't exactly spank him in the middle of the class either. Or could he? That would have been glorious revenge for all the humiliation he had endured under the hands of the boy's father and godfather. But even Snape wasn't that evil. The boy will just have to deal with his headache until the end of the lesson.

"Now you can see a simple pencil on your desk in front of you. Since you have passed your O.W.L.s. to be in this class, it should pose no problem to use the Reductor Curse and then repair it with Reparo again. Everyone, please do it now, so we can proceed."

The class erupted in "Reductos" and "Reparos" smashing and repairing the wooden pencils. Snape was relieved that all of the students managed to do it without a problem, including Potter, who apart from occasionally rubbing his temples, showed no visible sign of discomfort.

"Good, now I want you to attempt it without saying the incantation. Wordless magic is significantly weaker and takes time to master, however, we have already established, that the strength of the spell is often not the most important factor." Snape took a pencil and shattered it to pieces with a slight movement of the wand and then put them back together again with another graceful flick.

The students started staring on their pencils flicking wands but no one succeeded. Snape was walking through the classroom giving suggestions and correcting the wand movement, telling people to concentrate. After a while, a couple of students including Hermione and Malfoy managed to crack their pencils a bit. Harry couldn't concentrate at all. His head was throbbing, he kept feeling Snape's eyes on him and it unnerved him even more. So much for impressing the man, he couldn't do the spell at all! Hurting and frustrated he clenched the pencil and actually cracked it with his hand accidentally. Unfortunately, the move did not escape Malfoy and he laughed loudly.

"Potter is cheating, haha! Potter, are you even sure, you are a wizard?" Malfoy gloated almost jumping on his seat with glee.

Harry's frustration reached a new level. He quickly repaired the pencil with a classic Reparo and kept staring at it, but nothing happened. He watched as more and more students were achieving to crack the pencil and then somewhat repair it wordlessly. His headache was bad, and he felt like screaming in frustration at his own inability to concentrate.

"Potter, perhaps it's good that your Godfather is gone, at least he didn't live to see how utterly useless you are," Malfoy said with venom and a couple of Slytherins grinned at that.

Harry's temper flared. He just wanted Malfoy prat to fucking die! He looked at the pencil the blond boy was holding with such rage and hatred, and flicked his wand.

BOOM!

The spell didn't hit the pencil, Malfoy's whole desk exploded with a deafening sound throwing everyone nearby against the wall of the classroom. Snape cast a quick protective shield charm around himself and students in close proximity, but still at least six students, all Slytherins, were lying on the ground covered with bloody cuts from the wooden splinters of the shattered desk.

As soon as Snape realized just WHO was responsible for blowing up his classroom and injuring multiple students, Harry clutched his head, as severe pain from the bond started punishing him with excruciating force, bringing tears to his eyes. Thankfully everyone was so captivated by the blast, that no one paid attention to Harry.

Snape didn't know what to do! He had never had such a big accident in his class before and he was teaching Potions, for god's sake! Cauldrons explode on a daily basis there. Malfoy got hit the worst and might have gotten several fractures, but it was Potter who needed his immediate attention the most. Despite not making a single sound, Snape could tell, that the boy was ready to scream with pain. Snape felt torn, he just can't attend to Potter and ignore his class! Especially since all the injured were children of Death Eaters. Just you wait till I get my hands on you, Potter! You won't sit for a week! Snape also realized, that Harry cast the spell wordlessly and that the blast was almost too strong for wordless magic. It was no surprise, that The Boy Who Lived was a powerful wizard. But for such an amount of power, he severely lacked self-control. The boy was simply dangerous and something needed to be done about that!

"Potter, my office! Zabini, Parkinson, Nott, help get all the injured to the Hospital Wing. Class dismissed!" Snape barked orders, taking the body of barely conscious Malfoy and carrying him out. He felt a pang of guilt for leaving Harry behind. But the boy was strong, he will manage.

Harry felt dizzy, but he knew, he has to get out of the classroom. He saw Hermione crouching next to him.

"Harry, are you OK? You look very pale. Is it the bond?" she whispered discreetly, worry plastered on her face.

"Yeah, Snape was not happy with me blowing up his classroom I guess, it's really painful, my head is about to burst any moment," Harry answered, his voice hoarse.

"Harry, go quickly to his office, perhaps obeying his command will ease up the pain some," she urged him quietly, helping him up.

Hermione was correct, as soon as he left the classroom, the pain diminished slightly, at least he could see more clearly now. He hurried to Snape's office and let himself in. Harry decided to test the house-elf theory he had. He slapped himself lightly, but nothing happened. Oh right, Dobby was always banging his head against the wall. Harry went to the nearest wall and crushed his head against it with a thud. Nothing. He tried to apply more force, fighting the natural instinct. Ouch! He couldn't tell anymore, what his head was hurting from. Ok, it might not have been my smartest idea. Come ooon Snape, hurry up!

Snape practically ran to the infirmary tempted to just throw Malfoy at Poppy and leave. But of course, he had to explain the medi-witch what happened first, for her to properly treat the injuries. Snape's impatience was misinterpreted as anger and Madam Pomfrey felt the need to lecture him on teenage hormones, difficulties the boys were going through at that age, and how accidents just happen, and how he must not to be too hard on the culprit.


#-&-HP-&-#

Twenty minutes later Snape finally made it to his office. All his frustration and anger with Harry evaporated as he opened the door and saw the sorry state the boy was in. Harry was sitting on the chair, gripping his head, his face was red and sweaty, tears were streaming down his cheeks and there was a red bruise in the middle of his forehead. Snape mentally kicked himself for not finding a way to deal with Potter first after all.

Harry let out a sigh of relief when he saw his Master. Finally! He gave the man a pitiful apologetic smile.

Snape wasted no time with lecturing the stupid Gryffindor, he grabbed the boy by the elbow and dragged him to his private chambers. He cast a silencing charm and threw the teenager over the arm of the sofa. He glanced around and summoned a teacup, transforming it into a nasty looking wooden paddle. Pinning Harry down with one hand he brought the paddle down sharply on the boys bottom eliciting a painful yelp.

"I'm sorry!" Harry cried out. The sharp pain from the paddle replaced the headache and Harry was glad for the momentary relief. The feeling vanished when Snape brought the paddle down for a second time and Harry realized how much more painful the paddling was over the spanking he received two days ago.

"You better be, you miserable brat!" Snape scolded, but his heart was not in it. In truth, Snape didn't want to discipline the boy at all, because the bond already punished the boy quite harshly. He just hoped that his choice of implement will satisfy the bond.

"It was not enough for you to blow my cauldrons all these years, now you blew up half of the classroom with that horrible temper of yours!" Snape brought the paddle down two more times. Harry gritted his teeth as tears were streaming down his face.

"Is everyone alright?" Harry asked miserably.

"Malfoy broke his arm and has a minor concussion. Everyone else only suffered some cuts, but nothing too deep. What on earth possessed you to do that?!" Snape asked, paddling the boy two more times.

"Oww, I don't know, I was just so angry! My head was hurting, I couldn't do the spell, Malfoy was being a dick, and you were so unfair!" Harry whined pitifully. Snape rolled his eyes in exasperation.

"Yes, I was! Is that news to you? You have known me for 6 years, Potter! Surely, you didn't expect me to start publicly favoring you over the son of a Death Eater!"

Much to Harry's annoyance, he couldn't fail Snape's logic. He winced as another two smacks fell on his bottom. He just hoped Snape will be done soon, he didn't want to end up sobbing again and he was getting dangerously close to it.

"Harry, you need to work on your temper. It's not the first time your impulsiveness landed you in trouble. The magic you performed was very powerful, but it's useless if you can't control it," Snape voice completely lost the strict edge. Harry was taken off guard by the uncharacteristic gentleness. Not only Snape called him by his first name again, he even acknowledged, that Harry's magic was powerful. Well, I did manage to impress him, after all. Harry thought happily. A satisfied smile spread on the boy's face but was soon replaced with a wince as Snape paddled the teenager the final two times, bringing him to a total of 10.

"How is your headache?" Snape asked just to be sure. Harry sighed in relief, the punishment must be over then. He was pleased that he managed to take his punishment without sobbing his heart out like last time.

"It's gone, Sir, replaced with the buttache," Harry risked a sneaky glance at his Professor.

Snape let out an amused chuckle, "Get up, brat!" He watched as the boy pulled himself from the sofa and frowned at the bruise on his forehead.

"What happened to your forehead?"

"I tested the house elves theory."

"Doing what?" Snape asked, a nasty suspicion entering his mind.

"Banging my head against the wall," Harry admitted sheepishly, feeling rather stupid, "It didn't work."

Snape felt guilty again for leaving the boy to deal with the pain by himself. He went to the med-cabinet, retrieved a vial and handed it to Harry.

"What's that?" Harry asked eyeing the vial suspiciously.

"Take a guess."

"A potion," came the cheeky reply.

"Five points to Gryffindor. Drink." Snape almost laughed at the dumbstruck expression on the boy's face.

Harry drank the potion and made a face at the awful taste he knew all too well spending so much time in Hospital Wing. He instantly felt the ache leaving his punished backside. He didn't expect Snape to heal him after punishment, and he certainly didn't expect him to award points. Of course, Harry knew, that the man only did so in jest and will make sure to deduct them before the day was through, but it was still nice.

"Thank you," Harry said with a shy smile, handing back the vial, "Could we perhaps have some of that tea again?"


TBC

btw: Malfoy's description of the advantages of non-verbal spells is taken directly from canon. Though in HBP it was Hermione who answered that question.