She stood before him with a nervous smile. She was in her mid-twenties but felt as hesitant as she had when attending her first tutorial.
"Are you ready?" He asked, the tone of his voice measured and calm.
"Yes, sir." she replied, her words spoken with care.
The room was warm with two large armchairs at one end and a desk at the other. There was a large, leather chair behind the desk and two smaller ones in front. The wall behind the desk was lined with books; not the well ordered, leather bound volumes that can be found in the libraries of stately homes, but the practical reference books of a working writer or teacher.
He gestured towards the desk, which was empty apart from a computer screen angled towards the big chair but pushed towards one end of the desk top. She walked towards the other end and stood looking down, awaiting his next instruction.
"I have marked the special assignment that I set for you and I'm sure you remember the arrangement that we made. Do you still want to know the results, young lady?"
"Yes, sir." Once again she said nothing more than was necessary. He had taught her to be concise in these circumstances unless he encouraged her to say more.
"Tell me then, exactly what you recall of my terms."
"You agreed to set a special assignment for me that you would mark carefully but you said that the benefit of the assignment was in my completing it. I will only be told the results if I feel that I need to be told. If I do I will offer you my naked bottom to be spanked however you choose."
"Correct, continue."
"Because you assured me that I should not doubt my ability, you will punish me more severely if the work is outstanding than if it is merely adequate. If it is poor you will instead give me an additional tutorial to improve my chances of achieving high marks next time."
"Good, that was an exact summary, well remembered. I'm sure that you didn't expect to be given the tutorial and I'm pleased to say that it won't be necessary."
"Raise your skirt, pull down your knickers and bend over the desk."
She hesitated, feeling her face flush and blaming the heat in the room though she knew that excitement was a much more likely explanation.
With a sideways look at him she reached down past her skirt and hitched her thumbs in the waistband of her thong. As she pulled it down halfway to her knees she wondered whether he was looking for signs of her arousal but then she let go and it fell around her ankles. She thought about stepping from it but that hadn't been part of his instructions so she left it there where it was a reminder of how exposed she now was. Lifting her skirt she bent forward over his desk and when the skirt was safely nestled on the small of her back she let go of it and stretched out her hands towards the far side of the desk.
He didn't approach her at first and she imagined his gaze on her.
In this position her eyes were naturally facing the computer screen and she was transfixed by his screen saver. It was merely his name and the department contact details but it hypnotised her as it shifted position every three seconds. She knew it was three because she had nothing to do now but count it. If she didn't concentrate on the moving logo, she would be even more aware of her helpless situation.
He stood calmly behind her, pausing partly because he knew that it would reinforce his own authority and partly because he was admiring the young woman draped over his desk. He gazed first at her ankles. The thin black thong glistened in the in the pool of light falling from a wall lamp and he made a mental note to inspect it more closely later. Her calves were curves of pale skin and her thighs were even paler. Her bottom was almost white except where the two cheeks met in shade.