She found the experience quite exhilarating. She knew she had to thread carefully, so she restricted her behavior in class to a reserved level, always ready to answer the questions asked but not showing any of her previous excessive enthusiasm. There was nothing he could pin on her. All the while, she plotted new scenes that she could use against him in unsuspecting moments.

She had bought some provocative black lace panties with a matching bra, and after she put it on, she stepped in front of the full-length mirror to dress. She thought of him while she studied herself, first the front view, then turned to get a good look at the back, committing everything to her memory, before stepping into her clothes.

It had been a week since she had sent that first mental picture, with the excitement of the experience carrying on for days. During the first lesson after the incident, he kept glancing her way, but soon seemed to put it out of his mind and carried on as if she didn't exist. She decided it was finally time for another try.

This time, the class was bent over a surprise Potions quiz. Hermione had easily been able to answer all questions, but had left the last one blank. Now she brought the memory of her body's reflection in the mirror to the front of her mind, satisfied with the way the black lace enhanced her growing curves. She wondered how his slender, calloused hands would feel running up and down her skin. She forced herself to concentrate on the spell before her thoughts started running wild. She looked towards Snape, who had his head bent over a parchment, scrawling vehemently, probably ripping apart some poor student's essay. She took a last look at the mental picture, then wrapped it up and sent it shooting towards Snape. The moment she released it, she dropped her hand to the last question, neatly composing the correct answer. She listened intensely while she wrote down the words, but she heard nothing coming from his table. The scratching of his quill had stopped and there was no sound coming from his desk for a long time. Then she heard a dry pop that sounded a lot like a quill being snapped in half. She didn't dare to look up. She busied herself proof-reading her answers until it was time to hand it in.

He didn't look up when she put her scroll on his desk, and she didn't know if she should feel relieved or disappointed. She went to pack up her things and turned to leave the room with Ron and Harry when an icy voice cut through the room. "Miss Granger, I need to speak with you."

Ron and Harry turned, surprised, and shot her a worried look, lingering in the doorway.

Snape's cold eyes bore into them. "Potter, Weasley! Are you able to locate the next classroom on your own or should I call in assistance so you can have someone to hold your hands?"

Hermione gave them what she hoped was a reassuring look and they hurried out of the door.

Professor Snape pulled up an uncomfortable looking wooden chair in front of his desk.

"Sit."

She arranged herself on the chair as best as she could, putting on an unsuspecting face and hoping he couldn't hear her heart racing in her chest. He strode behind his desk, his hands gripping the back of his chair as he towered over her. She met eyes that held a furious shimmer.

"Sir?"

"You will stop this madness instantly."

She felt adrenaline cursing through her body, and although there was a flutter of fear in her stomach, she knew he didn't have anything on her.

"Professor Snape, what are you referring to?"

She saw the torment in his eyes as he debated his options. He must have suspected that she had done it on purpose, by means of some spell or enchantment, but he was a man of science, and he knew that there was always a margin of error. If there was the slightest chance that she had not intentionally sent those pictures, he could not mention it out loud. He studied her while contemplating his next move. As his gaze slid over her shoulder, she noticed a tiny jerk in his fingers and the fingertips that gripped the back of his chair turned white. She looked up to meet his eyes, and for a fraction of a second she saw a strange look in them that she could not place before icy fury turned his eyes to dark holes.

"I'm warning you, Miss Granger! That's all I'll say for now. Now get out!"

She decided not to play her luck, so she slipped off the chair to and hurried out of the room. Outside, she leaned against the wall, her heart hammering in her chest. There had been such a strange atmosphere between them, and she had to think back to that look she had caught in his eyes. It was right after he had looked at her shoulder, she remembered. She turned her head to look what he might have seen there. Her top had shifted slightly, revealing the same black lace bra strap she had seen in her mirror.