I had sex with my sister YAY!!!!!!!!!!!

Yesterday my sister's boyfriend was running late so she told him to come over an hour later.  She then asked me to pick out some sexy clothes for her to wear on her date.  So i agreed and picked out my favortie thong she has a short skirt and a tight tshirt.  I forgot how we got on the topic of sex but i teased her about how we should screw and eventually when we were home alone she showed me her pussy.  I then joked that she looked wet and i asked if i could see it again, this time i didnt let the chance go by and i slide my finger inside of her.  i fingered her for about two minutes then said god jen * name is changed* your so wet i wish i could slide my dick in you.  She thought for a moment and said you can. I was so excited but she grabbed my cock and said if you come in me i will kill you.  So i procceeded to enter my sister, and my god she was so tight and so wet it felt amazing we only had sex for about 5 minutes because we heard my other sister pull her car into the driveway.  But i hope maybe we can start something later on this week.