So Yesterday's story is really just how it started so me M(18) and sister f(18) having been getting really 'friendly' if you say as for St Stevenson day we were having fun with a bunch of family over and all drinking and having fun my sister wore an amazingly slutty dress with the fabric crossing over her chest showing amazing view of her perky tits the cleavage I had saw was amazing. So when she came out in this I immediately got hard and yet again just could not look away I think she say this as she just looked at me and winked.

As we all drank more and got more loose she had came over to me while I was talking to my family and sat on my lap she said 'looks like there is no room I guess I'll just sit here' I this point she definitely felt a hard cock pressing against her ass. She leaned over and whispered in my ear 'I have no panties on' and I instantly got harder I think she felt it as she moved alittle maybe in surprise I went claimed I needed to be sick so I could sneak away but my sister had told everyone she would help and snuck into the toilet with me. She came over and said she loved me and started to kiss me. We kissed for awhile and she started to rub against my leg clearly she had no panties as she left wet marks on my jeans. There was a knock on the door and we were startled let me know If I should finish this story.