2girls, blonde_hair, blush, brown_background, candy, chocolate, eye_contact, flat_chest, food, hand_on_another's_face, happy_valentine, heart, heart-shaped_chocolate, looking_at_another, mouth_hold, multiple_girls, nipples, no_hat, no_headwear, nude, red_eyes, red_ribbon, ribbon, seiza, shared_food, sitting, straddling, valentine, yellow_eyes, yuri