1boy, 1girl, black_hair, blush, breasts, brown_eyes, brown_hair, cellphone, cleavage, couch, holding, holding_phone, kaisen_chuui, large_breasts, long_hair, looking_at_another, looking_at_phone, lying, on_side, original, parted_lips, phone, shirt, siblings, smartphone, smile, white_background, white_shirt