Last night when our parents were out my sister and I tried kissing. She is 12 and very pretty with a slender body just beginning to get some female curves in her narrow hips and budding breasts. I am 17 and have been fantasizing about her s******* for about a year now as well as watching her through her bedroom and bathroom windows and stroking off. She has her own en-suite bath. We got naked and touched and talked and rubbed each other to o*****. She liked the taste of my c**. I sucked on her tiny t***. Our folks are going out again tonight and my sister is having a friend spend the night who she thinks will be into fooling around with us. She is very curious about being intimate with a girl.