Just chatting with girls makes me jealous and interfere. My childhood friend, who likes me, secretly and boldly tries to control my ejaculation at school. (Shinohara Riko, CAWD-212)

Riko is my childhood friend... but I'm the only one who thinks this way. When I entered puberty, she would get jealous and interfere whenever I talked to other girls, which bothered me a lot... She even said she could use her as a practice table for making love...