The nipples become sensitive enough to ejaculate during orgasm. My friend's nipples, after being given an aphrodisiac, become so sensitive that rubbing them causes orgasm! Hanagari Mai TYSF-019

I secretly drugged and assaulted my sister's friend, and for some reason, her nipples are abnormally sensitive! From that day on, she gives me a sour look while urging me to play with her nipples...