"You're my sister and you have lots of friends, girls so pretty and guys so cool. They even quarrel because of you. Can you tell me your secret, what do you have other girls don't?" I started feeling horny about my sister long ago, and now I seem to have found the key. I showered her with flatter and compliments, I told her she's the prettiest girl I've ever seen. I knew the mouth is the best weapon of a man. My strategy worked and the compliments had their naughty effect.