I request (rather command) the readers to read the first part of the series to enjoy this completely.
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"The most fascinating work he did was the discovery and confirmation of black holes." Professor Yadav paused to pull his glasses down, letting them hang in front with a golden chain and looked up at the class; his eyes were as piercing and dominating as ever, "Just imagine the genius of the man called Stephen Hawkins," he continued in his hoarse voice, "A celestial body that cannot be seen even with the most powerful of telescopes. Infact," a very small smile sprawled across his lips, "something that is actually invisible. He not only affirmed its presence but also derived the whole mathematics that work around it, giving us...."
Srishti was looking at his lips. She was oblivious to the words spoken by him. She could make out his prominent canines as he smiled and she felt a slight tingling sensation around her collarbone. Her eyes strolled down to his bony jaw. She inadvertently gulped. Her eyes went even lower, following the veins across his muscular forearms till they lingered around his strong, manly hands. There was this visible strength in his hands that can't be missed as he flexed them for innumerable times during his lecture. And Srishti lowered her gaze to the gentle bulge at the front of his trousers. She couldn't help but lick her lips at the prospect of nudging against his manhood.
She ran a finger across her hand till she touched the mark around her wrist. The images of her encounter flashed in her mind. She had gone to Professor Yadav's office for clarifying doubts in Quantum Physics. But she had a hidden agenda. And to her blissful surprise, she wasn't disappointed. She allowed her eyes to shut down, to vividly recollect the last night.
He had turned her around and pulled her in his strong arms till her prominent buttocks were mashed against his swelling pants. He had held her by her waist and had lifted her off of her feet and turned to his mahogany table.
"Bend forward Srishti." he had commanded, "Stretch your arms and place your palms on the table."
"Please Professor. I don't.."
"Now!"
She had immediately bent forward, placing her palms on his table. Table felt soothingly warm. And to her shock, she noticed a big mirror attached to the back of his chair which was turned around now. She looked at her bent over reflection in the mirror and felt vulnerable in the position with her upper torso bent forward, making her butt sticking out as if anticipating his hand. She could see him standing behind her; his eyes running all over her protruding butt. She bit her lower lip and involuntarily squeezed her ass cheeks as if to protect it from his gaze. She closed her eyes, breathing heavy and waiting. Waiting for him to say something. Maybe touch her. She blushed at the thought and felt a tingling sensation between her legs.
Moments passed by as she felt him walk and pulling his drawer open. She opened her eyes and saw him holding a nylon rope in his hands.
"Professor..?"
"Hold still," he breathed and made a loop of rope around her wrists, pulled the double rope between her hands and tied it under her wrist with a meter of rope available for him to tug. She squirmed as the ropes dug into her soft skin. Professor moved across his table and pulled the free end of the rope. She felt her breasts mashing in the table and her feet barely touched the ground.
"Please Professor, I... Professor,"
He secured the free end of the rope around a leg of the table. Srishti could feel her moist pussy pressed against the corner of his table. She was shuffling from one toe to another. Professor took a step back and walked behind her. He always enjoyed the art of tying with ropes. His knots will always be under the wrists so that he can relish the sight of a smooth skin gripped under the relentless rope.
She looked up into the mirror and saw him looking into her eyes. She turned a crimson red and squirmed helplessly and tried tugging on the rope. But to her blissful agony she was awarded with a crunching slap across her taut ass. *SMACKK*
"AAAH Professor...P.. Please,"
"Yes Srishti."
She opened her eyes and the whole class was staring at her. Professor Yadav was standing in front of her.
"Yes Srishti?" he repeated, "You were asking something?"
"Umm.. Yeah... Professor... Uhh I was wondering. I was just wondering how a black hole consumes everything that comes close to it."
Professor placed his glasses back and took a step forward, "Yes. It is very difficult to escape its gravitational pull once you are too close to it."
He was looking at her. He was looking through her.
*********************
She coughed and knocked at his office. It had been few days since her meeting with Professor Yadav. A buzz was running in her head. She couldn't concentrate on anything. Her nights were full with visions of Professor. She would almost whimper thinking about the things Professor had planned for her.
"Would you like to sit by my feet and let me stroke your head in love?" she looked up at him, "Yes Professor I would love to."
"Come in," her trail of thoughts was abruptly stopped as he commanded her to walk into his office. She touched her hair and turned the knob.