Sex with my biology teacher...

My Biology teacher is hot. I can't count the number of times I've masturbated to her. She's also very strict and I get in trouble in her class pretty often.
One day while I was sitting in her class she was walking up and down the rows. She dropped a piece of paper and bent over right in front of me to pick it up. She had on a tight pair of jeans and when she bent over, I could see her black thong. My cock instantly became hard. She stood back up and went back to the board and began lecturing. While she was facing the board I was staring at her ass. She was about 5'4" probably around 100 pounds. She had large c cup or small c cup breasts, and the greatest ass I've ever seen.

While I was fantasizing she called my name a number of times to ask me a question, and finally got angry with me. She walked over to my desk and bent over putting both elbows on my desk. I had a clear view of her cleavage and her black lace bra. My cock was aching. She told me she'd see me after school for a detention. "Yes Ms. Lara", I replied. I was pissed that meant I'd have to miss football practice again and run extra laps.

I went to lunch after that class and my friends were all making fun of me, because they knew why I hadn't heard her. I finished lunch and went to my next three classes still thinking of Ms. Lara. My cock semi erect. I didn't even notice the girl next to me raising up her skirt so I could see her nice shapely thighs (OK maybe I did notice a little bit).

After school I went to Ms. Lara's class and sat down. She told me to take a seat and gave me some stuff to write. Then she went to her practice (she's coach of the girls track team). I wrote for awhile then put my head down and went to sleep. I was awakened by Ms. Lara knocking on my desk, she hadn't changed from practice yet. She was wearing really short tight pink shorts, and a tight tank top that was too small for her breasts. Her flat stomach was showing, and her nipples were sticking out from her breasts trying to bust through the fabric. My cock became hard again and Ms. Lara's eyes focused on it. She walked over tom and asked me to stand up.

Once I stood up ms. Lara went down on her knees and unzipped my pants removing my rock hard 7 inch dick. She took all 7 inches into her mouth and began sucking feverishly. No girl had ever given me head this good before. I told her I was about to come but she said not yet. I stood her up and began kissing her passionately, my hands found there way down to her ass and were squeezing it. She stepped back and removed her shirt exposing her beautiful breasts, then she removed her shorts so she was only in her little black thong. I stripped out of my clothes as fast as I could and sat her on her desk. After I removed her thong I guided my cock into her pussy slowly. She let out a long moan then started bucking her hips to match every thrust. "Oh god! that's right! fuck that pussy BABY! OH YEAH!" "I'm gonna cum!!!" I yelled. "cum in my pussy baby! Shoot your load deep into my pussy" I couldn't take it any more I felt her body start to shake and we orgasmed together. I felt shot after shot of my cum shooting into her pussy.

I don't get many detentions in her class anymore, but I do visit her at her house pretty often...