Rule 34 Dev - all_fours anthro back_muscles big_butt bodily_fluids brown_body brown_fur butt fart fart_cloud fart_fetish filth fur hyper_realistic_ai looking_at_viewer looking_back looking_back_at_viewer male muscular_arms neck_tuft realism rear_view serious_face short_tail slightly_chubby solo sweat sweaty_body sweaty_butt tuft unknown_director mammal ursid|78597272