My hot little sister swallows!

I was 18 at the time of this story and my sister was 16. I had just finished high school and I was heading for college in the fall. I was 5’ 10” 175 pounds and I was in very good shape from playing sports. My name is Jim and I was also a bit of a nerd. Between studying and sports I hadn’t even started dating yet.

My sister Beth was 5’ 5” and a trim 105 pounds with perfectly pointed C cup boobs and a very nice bubble butt. She had silky long natural blonde hair with piercing blue eyes and a very hot mouth. She was a bit shy so she hadn’t started dating yet either.

My parents had decided earlier in the year to make Friday night their date night. While they were out we would get something for dinner, play a video or board game together and then get dressed in our bed clothes and watch a movie. Generally I wore shorts and a t-shirt and Beth would wear a pair of pajamas.

After a few weeks I noticed that she didn’t wear a bra. This is about the time that I noticed that she had a hot body. It did make me feel weird that I thought that my little sister was hot, but I figured nothing would come of it so it wasn’t a big deal. She started teasing me and did it more and more as time went on. She would have her pajama top undone to the middle of her boobs and lean down in front of me to pick something up giving me a very clear shot of her perfect boobs. She would also bend over in front of me to pick something up while facing away from me and her gorgeous butt would be half-exposed proving that she wasn’t wearing panties. It was always done in somewhat of an innocent way so I couldn’t be sure if it was accidental or not.

We watched all kinds of movies together until I discovered that Beth liked r-rated horror movies. I thought horror movies were OK but every time a scary scene came on she would bury her face in my chest and rub her hard nipples across my arm and chest. Every time she did that it caused my cock to get rock hard. She knew that she was doing it to me also because she would look down at it when she thought that I didn’t notice.

It was then that I decided to only wear loose shorts and no t-shirt. Although I told her it was because it was getting warmer it really was so that I could feel her nipples rubbing across my chest better.

Beth then started wearing short sleeve or no sleeve tops made of much thinner material and loose shorts. She stepped up her teasing game too. Every time there was a scary scene she would run her hand across my hard cock and rest it on my leg right beside my cock while she buried her face in my chest. If she got really scared she would grab my cock and hold it until she relaxed. When she did that I would hold her and kiss the top of her head until she calmed down.

When the movie was done we would give each other a hug and kiss and go to bed. My cock would still be hard from all of her teasing and she would rub her body into it and slide her hard nipples across my chest. She would kiss and lick my earlobe each time and whispering goodnight into my ear. I would then kiss my way from her shoulder up to her ear and lick her ear and whisper goodnight to her. She would then smile and walk off to her room to go to sleep.