It was my last semester in high school. I had turned 18 a week ago. She would stand at the front of the class with her short cut dress and low neckline. She has great cleavage with her 34B size tits. Stands 5' 2" tall. Nice ass. Whenever she would walk by me, she would always give me a seductive smile. Up until now I thought there was no chance of getting any of Kim after class.
One day she told me to stay after class to talk about my grades.
"Bob. Your grades have been slipping. is there anything i can do to help get them back up." Kim asked me.
She was sitting across from me with her legs crossed. Then she uncrossed her legs and I could see clearly she wasn't wearing panties. She had the most beautiful shaved pussy. I'm pretty sure she did it intentionally.
"I don't Kim," I replied. She was on a first name basis with her students. "I really can't think of anything."
"I have an idea," she said. "Go lock the door."
I got up and walked to the door and locked it. When I turned around to walk back to my chair, I got the shock of my life. There was Kim sitting on her desk stark ass naked.
"I know you turned 18. If you get your grades up you can have this," moving her hands from top down to indicate having her body. "I will let you treat me like the slut I am." "Do with me as you please."
I walked to the desk and started to reach out but she stopped me.
"No No. You have to bring your grades up first. One week to see improvement. Agreed?"
Like I was going to disagree. "Agreed." I replied. With that she stood up and took my hand and placed it on one of her tits.
"Just an incentive Bob." Then she took my hand away and got dressed.
I went home that afternoon and jacked off thinking about what was to come. Then set to studying my ass off. We had a test at the end of the week. Each day took forever to go by. Thought Friday was never going to get here. And then it did.
"Okay class. You have until the end of class time to finish the test. That gives you one hour," said Kim. "No talking and when finished just bring your test up and lay it on my desk."
Almost all my classmates were finished at about 40 minutes. There were only a few others and myself. I looked up at Kim and she saw me looking. Checking to make sure none of the others was looking she lifted her tank top for a second showing me her tits. Boy did I hope I passed the test. It was going to be a big part of the grade.
I had just finished the last question when she called times up. I was the only one left in the room. I walked up and handed her my test.
"Pull a chair up next to me while I grade your test," Kim told me. "I'm really horny and feeling really slutty today. I hope you passed your test." And she laid her one hand in my crotch and started rubbing my cock through my shorts. I was completely erect within seconds.
"Mmmmm she moaned. I want that in my mouth."
She finished grading the test. "Go lock the door Bob. You passed." she said with a grin. She was already stripping before I got to the door. I locked it and walked back to her desk where was sitting naked. I stripped off my shorts and wasn't wearing any underwear in hopes I would pass.
She laid down on the desk and told me to come straddle her face. I climbed up on the desk and straddled her face. She reached up and took a hold of my cock and started stroking it. She guided it to her mouth and parted her lips.
