Discreetly peeking into her room, I catch my 19-year-old step sister, Aya, engrossed in an adult video. Her smooth, petite body is wrapped in a schoolgirl uniform, her pink pussy already glistening with anticipation. She blushes, trying to hide her porn stash, but I've already seen enough to crave more. I approach, my eyes locked onto her innocent, doe-like ones, and whisper, "Let me show you how to really enjoy it." I slowly lower my head, my tongue tracing her inner thighs, her breath hitching as I finally reach her wet, virgin slit. I take my time, lapping at her folds, savoring her sweet taste, teaching her the pleasure of a skilled tongue.