I'm 23 years old and I have an identical twin sister. We started experimenting with sex together when we were 7. I accidentally saw a porn video on the internet and the next time I saw one wasn't an accident and then I got my sister involved and it was so hot we had to try some of it out on each other and we gave each other our first orgasms when we were 9. We've been lovers since though neither of us do just girls. We both have boyfriends. When my current boyfriend was 18 my sister and I surprised him for his birthday by double teaming him.