1boy, 1girl, adolescence_(vocaloid), ahoge, bare_arms, bare_shoulders, blazer, blonde_hair, blue_eyes, blush, brother_and_sister, camisole, collarbone, collared_shirt, flat_chest, frilled_camisole, frills, hand_on_another's_shoulder, hetero, implied_fingering, incest, jacket, kagamine_len, kagamine_rin, looking_at_viewer, mimi_mine, nervous, parted_lips, shirt, short_ponytail, siblings, sleeveless_blazer, smug, spaghetti_strap, spiked_hair, sweatdrop, twincest, twins, vocaloid, white_camisole, white_shirt, yellow_nails, yellow_shirt