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Chapter 3

"Ms. Tonks wake up," his voice sounded far. Tonks opened her eyes and saw professor Snape sitting in a chair about a foot away from where she was. The young woman sat up. She was in a comfortable bed, with dark green sheets, she looked around, a big shelve full with books, a closet, a desk full with parchments.

"You are in my rooms Ms. Tonks." Snape whispered drawing attention to himself. Tonks blushed as images flashed through her head. She had forced herself on her professor.

"We will forget about this, it was the potion's effects. Let this be the last time you ever do something like that to my person." He said sardonically.

Suddenly fury invaded the metamorphmagus, ok, she had accosted him but at some point he had been a willing participant. She rose from the bed and noticed that she was dressed in her full uniform.

"I couldn't have you half naked in my bed," the man sitting in the chair drawled. "Wouldn't have been the first time." Tonks faced him; she noticed a slight change in his stare, an almost untraceable fire in his eyes.

"That was a mistake, you tricked me. I would have never considered bedding you otherwise." He spat at her.

Tonks felt hurt but more than hurt she felt her pride being insulted. If there was something that she had inherited from the Blacks it was pride and arrogance. She came closer to her professor and once again sat on his lap. She softly kissed his lips and carded his hair. "The potion might have inhibited my desires but they were there all along." He groaned when she nipped his earlobe. "Just like before you are not doing anything to stop me professor. I know you want me too. Don't lie to yourself, I don't know what stopped you before but we both know that you want me under you once again." She purred as she ran her hands over his naked chest and belly. She didn't know where this bravery came from but she felt powerful with desire and lust for this man. In a moment she decided to have him again, no more fantasies or frustrated snogging session with silly boys who didn't know what to do with their hands. She would have him now.

With a new resolve, she grabbed his hands and placed them on her breasts, encouraging him to do something. He was very reluctant and only cupped them, "you might be still affected by the potion."

"I am not and you know it." Tonks moaned and he kissed her roughly then. After that he didn't need any more encouragement. He became the lover she had known before. Eager to explore her and have her, Snape tried to move them to the bed but Nymphadora whispered, "I want us to be here. I have dreamed about this, every night, please professor here." She kissed his Adam's apple while he raised his hips to get rid of the trousers.

She ground her hips once again and he was in. "I wanted this for so long," he muttered against her neck. They were frenzied; each seeking pleasure out of the other in less than ten minutes Tonks let out a sob and collapsed against her teacher.

Severus didn't have time to ponder over the situation he was in; she was suddenly getting up and going to his bed, her hair brown and long against her white back. She looked like she belonged there in his bed. He naturally stood up and went to bed.

It was perhaps the biggest mistake in his life but he did not want to give her up. He used her, and he was using her once again. It was wrong for him to abuse her young feelings and mind; Severus knew all of this. Soon this girl would regret the age gap and resent him, he decided to enjoy this woman for as long as he could. Since having her, months ago he had taken the habit of observing her discretely. Nymphadora Tonks was the usual Huffelpuff, friends with different people from Ravenclaw, Gryffindor and her own house. These friendships were superficial; she didn't have any real confidantes it seemed. The girl was an average student, frequented the library only when her assignments required extra researching. She was constantly changing her hair and nose but not her figure. She had a vivid imagination, she talked about having fantasies, and well she'd been projecting some of them to him. Whenever the girl had class with him she would look at him and basically show him all the sexual things she wanted to try with him.

He'd tried; the gods knew he had tried to keep her away from his thoughts but he was only human. After a herculean effort on his part he managed to resist temptation more than once only for this slip of a girl to shattered with a few sentences. "I'm seventeen," Legal, in both muggle and wizarding laws. "I want you." No one had ever uttered those words to him, not even Lily.

Severus snapped out of his thoughts when he saw her looking directly into his eyes. She was sprawled on his bed, naked and giving him a lusty look. He decided to torment himself later.

Slowly he stepped out of his trousers and boots, in their haste he'd forgotten about fully removing them. They spent the next few hours in bed, whispering, moaning, and grunting. They were a sweaty entanglement of limbs, Tonks was a little sore and tired from all the workout she had that afternoon. After catching his breath Severus said, "we have to have some ground rules." He stroked her back.

"Number one, and the most important. I will not change my mind about this. This is sex only. I am not a starry eyed teenager looking for love. Listen carefully Nymphadora I can't love you I don't want to love you." He said harshly to her. The young woman looked surprised by the anger behind his words.

"Just sex, got it." Snape was clear; he made no promises or left room for interpretations. Tonks liked that; if she was honest with herself she did not want a relationship with him either. She didn't know how to explain it but there was something about him that attracted her.

"I want to have one unbreakable rule, I doubt this will happen." She raised herself from his chest and bravely spoke. "If I ever develop feelings for you. I will tell you, I only ask you to not belittle them and honestly tell me if you've changed your mind about your feelings towards me." She looked defiantly at him. His brow was furrowed just like when he argued about potions with his advanced students.

"Agreed, now rule number two; no one must know about this for obvious reasons. There will be no indiscretions outside of my quarters or my classroom." Tonks smiled and asked.

"So you will only fuck me after school hours." He looked sourly at her but nodded nonetheless. Tonks chuckled, "what bout cuddling and other tactile activities?" she asked, as she played with some of the hair in his lower abdomen.

"I will grant you some of them. I am not a man who particularly likes those activites but I will relent in some occasions." He was lying through his teeth; he craved affection, especially touch. But she didn't know that so he scowled when she kissed his belly button.

"Rule number three." He felt her hands going lower and stroking him. "I don't share, if we are to enter this agreement you will not be seeing other men." He rolled them over. Being on top gave him power, he saw her flushed face and could see that she loved when he took charge.

Severus pushed into her and thrust into her. "Are we clear?" he bit the side of her shoulder.

"I only ask for reciprocity professor." She had the audacity to smirk. "Of course, now my name is Severus. When we are like this don't you dare call me professor." He growled as she arched her back and met his thrusts. By the end of the night Nymphadora Tonks made him like his name. His name sounded beautiful when she said it in the throes of passion.

She felt boneless tired but oh so very satisfied, Severus touched her sides and softly said, "don't fall asleep. You have to go back to your common room." He sounded just as tired as she felt.

After a catnap Tonks sat up and performed a spell to check the time. 5:27. She missed lunch and the first half of defense against the dark arts. Fortunately this teacher wasn't keen on attendance or performance for that matter. Professor Smethwick seemed content with lecturing and giving exams at the end of each month. She could probably get the notes from one of her Hufflepuff classmates.

She looked to her side and found Severus, it sounded foreign to her ears. He looked at her and with regret, "We are doing this, you already agreed. There is no sense in trying to change our minds now." She sounded stronger than she felt.

Severus Snape nodded and without any other words left for his small bathroom. Tonks dressed in her uniform. Her blouse and tie were in the small storage room, she summoned them and mended her skirt to look presentable. She concentrated and morphed her hair to neon green. She walked out of his quarters before he could walk out and end whatever they had.

Tonks continued with her usual routine, the only change was that after 4:00 PM she no longer went to her common room. She spent part of the afternoon with her potions professor. She had asked Professor Sprout to help her accommodate tutoring lessons. Her head of house knew that the young metamorphmagus wanted to be an auror and was convinced that extra lessons would help her achieve her goal.

"Please Severus, Ms. Tonks needs these lessons. This could be a serious advantage for her." Pomona said over breakfast after proposing the lessons.

"Professor Sprout, would you not agree that the girl is clumsy and lacks the ability to behave herself?" he looked at the older woman.

She blushed and stammered, "I, Severus I am asking this as an special favor."

"It can't be done, the girl is an accident waiting to happen. More than once she had knocked cauldrons and caused explosions. It is a wonder that she made it to the advanced potions class. It would be an error to give her more time around cauldrons and toxic ingredients."

"Severus if you do not agree I will personally talk to the headmaster. Let's see what he thinks after I tell him about your posture and lack of encouragement towards our students." The chubby woman huffed and ignored him for the rest of the breakfast.

The young man would not cave, Dumbledore himself had to intercede for the young Hufflepuff. "Her skills are very valuable, I need you to train this girl, she could of use in the future." His electric blue eyes left no argument. Snape reluctantly accepted to tutor Ms. Tonks.

Their first meeting took place the following Monday. She had black hair in a pixie cut, "your appointment was at 4:00. You're late." She smirked and kissed his frown.

"If you had agreed after I convinced professor Sprout asked you to take me under your wing." She said cheekily.

"You have so much to learn. It would have been very suspicious to agree without giving a fight first. Have you ever seen me tutor any other student." He glared and touched her hair. I don't like this color on you.

Tonks changed it to an electric blue. "That's better." He grabbed her by the hips and led her to the bedroom.