Sumire and Mai were shy and didn't stand out in class, but the days they discovered that their nipples were sensitive, they were ridiculed by bullies. When I decided to consult with my homeroom teacher, I was able to tighten my nipples! ! Even though it looks simple, the nipples are flashy... I have to get used to various stimuli...If you're close friends, you can lick each other's nipples... You two can't control yourself in repeated nipple development! convulsion!