When i was a kid, about 6 to 7 years old, my twin sister and I would go into her room and lock the door. Inside we would strip completely and take turns licking and kissing each other WHEREVER we wanted (including the private parts). We also had s*x a couple of times (but we didn't actually know what it was and we were too young for my sister to get pregnant). Since then we have done a bit, but not much. We don't have s*x very much but every so often we do and we love it. She has sucked me and I have touched her chest and have fingered her many times. We both hope to continue this.