As I was saying with our birthdays being 2 days apart we share our birthday party. Sometimes mine is close to on labor day that's when we usually had the party. So it was a 3 in 1 day. So the first year our parents did this was 1990. They got married in March of that year. So we all fell into a normal routine on the weekends. Our parents would go to the bar ever Saturday. This weekend thet went out with friends before the bar and the person watching us wasn't gonna be there until around 730 at night. So me being the oldest I was the one in charge. They left around 4. So our sister and brother went to the park leaving Vanessa and me at the apartment with our baby brother who was occupied with the Nintendo. Vanessa and I were just playing with lefts talking about our party. She asked me what I was going to wear? I said umm clothes?!? I was confused for a second. She chuckled and said I know that but it's our party our family is going to be there don't you wanna look nice? I just shrugged and asked what she was going to wear. She smiled the hugest smile and said I don't know do you want to help me choose somthing. I said yes I do. I was overwhelmed with excitement not only do I get to stare at her in different outfits but I get to pretend that im picking out girl clothes for me. So we went in her room and she took off her shirt to reveal a starter bra. Her small mounds had gotten bigger in the year. I didnt know how to act so I turned around. She asked what I was doing and I said well you are changing im not supposed to watch you change. She told me to turn around she wanted me in there to watch her change. I turned around and she was standing there completely naked. To me she was so beautiful. She had just about a mouthful of tits her nipples were very big, the mound of her pussy was so thick and bare I wanted to go touch it. My young dick getting hard in my pants. She asked me if I ever seen a naked girl before. I told her only on TV in a movie my cousin was watching. She seen the mound in my pants and asked me what was going on there. I said I don't know my privates are hard looking at you. She asked if she could see it and walked over to me. Without missing a beat I had my pants undone and my boner sticking straight out. She grabbed it and started rubbing it. Her hand was soft against my skin every stroke sent me into extacy. She asked if it felt good. I replied with a nod of my head. She told me I could touch her if I wanted to. I r3ached my hand out and started rubbing on her small young titties.