Changing My Grade

Ms. Kelly Arnold, at the front of the class, was looking at her senior students. Her eyes rested on Katie, a gorgeous blonde hair girl with a small waist. She was wearing a very short mini-skirt that rose higher than mid-thigh when sitting down and a lacy tank-top that flaunted her huge tits. She was perfect. Her reputation as a whore preceded her and Ms. Arnold knew all the boys worshipped her. As the bell rang, the students began filing out of the classroom. Before Katie left, Ms. Arnold called her name.

"Katie, I'm extremely disappointed with you. Your grades have been going down."
"I know, Ms. Arnold, but I've been busy." She replied with a sad face.
"Well, we'll need to solve that problem won't we?" she said, knowing exactly what she had been busy with. "Please come see me after school."
"I'm kind of busy after school."
"Katie, what is more important? School or whatever your plans are?" She asked.
"What time should I come?" Katie asked back.
"At three thirty is fine."

Katie walked away. Ms. Arnold smiled to herself, thinking about what was going to happen that afternoon.
Three thirty came but Katie hadn't arrived yet. Ten minutes later she came through the door.
"I'm sorry I'm late, Ms. Arnold."
"That's ok." She replied, but inside she thought, 'I'll have to punish you for that.'

Ms. Arnold got up and brought Katie's latest test. As she approached her, she noticed that Katie's nipples were poking through her tank-top and she also wasn't wearing a bra so they were easily seen. She stared at them, they were huge.
"Oh, it's a bit chilly in here. You understand." Katie explained.
"Of course," Ms. Arnold smiled innocently. "Ok, well, let me show you the things you did wrong." Ms. Arnold purposely stood close to her, becoming horny with every second. She explained Katie's errors.

Soon enough she couldn't hold it in. She asked, "Katie what is your bra size?"
"Well, I'm kind of between a C and D. Why do you ask?" She looked skeptical.