Mihiro, the younger sister, finds out that her unpopular older brother has finally found a girlfriend. Unable to express her joy, Mihiro eventually realizes her own feelings... "I've always loved you, big brother..." The day before their date, she says, "You'll hate me if you cum too soon. I'll be your practice partner," and gives him a deep kiss, footjob, deep throat blowjob, and cums on her tongue. She then gives him a sex education lesson, shaking her ass, which is big for her face. Five creampies full of love from a completely subjective point of view! *Some scenes are processed using AI.