My childhood friend, who's cute and has big breasts, seems to have been interested in someone recently, and I'm feeling a little complicated... One day, she came to me for advice about a problem she couldn't tell anyone else about. "I heard that big breasts make you less sensitive, so I'm worried... Hey, can you touch them for me?" She said something unbelievable! Is this a chance? No, my childhood friend has seriously confided in me! I have no choice but to lend a hand! I took the plunge and started kneading her big breasts, but she reacted with a hesitant reaction. "I wonder if it's true after all..." she thought, feeling dejected. But right after that! The moment my fingers happened to touch her nipples, she reacted with a jerk! "Th-that place... might feel really good..." I thought, and so I started to develop her nipples with daily "nipple rubbing"! My childhood friend's sensitivity increased day by day, and she had repeated nipple orgasms, and her orgasms only increased my sexual desire! What on earth is going to happen to us!?