My mother traced the shape of a stick over her pants and gently zipped them down. My son's stick has already hardened to the point of bursting, and he is shaking the pole up and down. Then, as if tasting a freshly boiled stew, he discreetly stimulated the tip of his tongue with the tip of his tongue. Seeing the transparent liquid gradually flow out from the tip, my mother stuffed it into her mouth, looking delicious. 50 such scenes!