Rule 34 Dev - 2024 anthro anthro_on_anthro balls bear becoming_erect biped brother_(lore) brothers_(lore) chinese_text dialogue duo eyebrows eyewear fingers fur genitals glasses hi_res humanoid_genitalia humanoid_penis incest_(lore) littef male male/male mammal penis sibling_(lore) speech_bubble tail text twins_(lore) vein veiny_penis|13322218144