2girls, >_<, arm_support, ball, bare_shoulders, blue_dress, blue_footwear, blue_hair, blue_ribbon, blush, boots, captain_tsubasa, closed_mouth, collared_dress, detached_sleeves, dress, elbow_blush, expressionless, flower_knot, furrowed_brow, hair_ribbon, hair_spread_out, holding, holding_ball, jitome, kansaiben, knee_blush, knee_boots, kotonoha_akane, kotonoha_aoi, legs_up, long_hair, looking_at_viewer, lying, multiple_girls, no_detached_sleeves, on_back, on_ground, open_mouth, outline, panties, pantyshot, pink_hair, raised_eyebrows, red_dress, red_eyes, red_footwear, red_ribbon, ribbon, sergei_(gsr250sergey), shoulder_blush, siblings, sidelocks, sisters, sleeveless, sleeveless_dress, soccer_ball, squatting, standing_on_another's_feet, underwear, upside-down, v-shaped_eyebrows, voiceroid, white_background, white_outline, white_panties