Fucking My Siter Beth

My names is Dave, and I’m 16 years old. My parents are both in their mid 40s and I have a 12 year old sister named Beth. I got to the high school just down the steet. My parents both work, and Beth goes to the middle school on the other side of town. This means I’m always the first one home, and usually take advantage of this time to masturbate.

On an ordinary Monday, I came home from school exhausted, and decided to relax myself with some masturbation. I went up to my room, not bothering to shut the door becuase Beth wouldn’t be home for another hour. I dropped my pants to the floor and lay down on my bed stroking my cock up and down. While I was stroking my cock, I was imagining that I was fucking our new english teach Ms. Thomson.

She was in her first year of teaching, and was only 25 years old. She had long blonde hair, with nice sized tits and a perfect ass. I had never seen such a tight ass, and she really liked to show it off. She would always wear extremely tight pants, and bend over in front of her students. I imagined I was fucking her from behind, having a prefect view of her ass as I pounded in and out. As I felt myself getting ready to cum, I grabbed some tissues off my dresser. Several seconds later I let out a long groan and blew stream after stream of cum into the handful of tissues.

Then I heard a gasp. I looked up and saw my sister Beth standing in the doorway, looking even more shocked than I probably was. There were a few seconds of silence and then I blurted out:

“What the fuck?!”

I jumped up and slammed the door in her face, and I heard her run to her room. I leaned against the closed door, trying to catch my breath. My 12 year old little sister had just seen me jerking off, and cum into a handful of tissues. I got dressed and decided to go for a drive to calm myself down. I went downstairs, avoiding my sister’s room, grabbed my keys and walked outside to my car.

I got home around 6:00, just as my family was sitting down to dinner. I decided to join them beacuase I hadn’t eaten anything all day, but avoided making eye contact with Beth. Dinner was pretty quiet, but I think my parents were both too tired to notice anything strange was going on. After dinner I went upstairs to finish some homework, and then went to bed.

The next day I got home from school at the usuall time, but didn’t really feel like jacking off because of what happened yesterday. So instead I sat down on the couch to relax and watch some TV. Beth got home an hour later, and came and sat down on the couch opposite me. We still hadn’t talked since the incident yesterday, and it didn’t seem like that would change, until she broke the silence.

“Dave… what were you doing yesterday? Are you mad at me?”

“Beth I don’t think we should talk about it, but no I’m not mad at you… I just didn’t think you would be home so early.”

“Why can’t we talk about it? You looked like it felt really good. Didn’t it?”

“Yes. But thats not the point. You are too young to know about these things Beth.”

“Please tell me Dave, I won’t tell mom or dad if thats what you’re worried about”

I looked at Beth, and for the first time I noticed that she was pretty attracitve, and she looked much older than 12.