Worried about the future of my shy and withdrawn sister, I have been developing her nipples for the past 10 years so that she will become more active. 10 years ago, I started to teach her the pleasure of erecting and playing with her undeveloped nipples. 7 years ago, I had multiple sexual experiences to encourage the sexual growth of my nipples. Even after getting my first boyfriend 3 years ago, I continued developing my nipples. Now, my sister's nipples are as sensitive as a clitoris and have reached the highest level of sensitivity, and I have succeeded in cultivating a sensitive constitution that allows her to orgasm instantly. Having grown up with this nipple special education, my sister is now a genius at nipple orgasms.