Rule 34 Dev - 2girls 7001 back-to-back birthday black_socks brown_eyes character_name cookie crossed_legs dated english_text flower food food_in_mouth furutani_himawari hair_ornament hairclip happy_birthday kneehighs looking_at_viewer mouth_hold multiple_girls oomuro_sakurako school_uniform serafuku silhouette sitting socks v_arms yuru_yuri|4429387521