It wasn't until my brother, who knew nothing about sex, got a girlfriend that I realized how I felt. My sister gave me a sex education lesson during puberty. Misaki Tanaka. KNIP-008

Mei-xun, the younger sister, learns that her unpopular brother has finally found a girlfriend. Unable to express her joy in words, Mei-xun finally realizes her feelings… “I’ve always loved you, brother…” The day before their date, she says, “If you ejaculate too early, you’ll hate me. I’ll be your practice partner.” She kisses him deeply, performs footjobs, deep throat oral sex, and finally ejaculates on her tongue. Then, she gives him a sex education lesson, shaking her hips, which seem enormous compared to her face. Five loving ejaculations, entirely from a subjective perspective! *Some scenes have been AI-processed.