rule 34 2023 abelisaurid abstract background ailurid anal anal sex anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro anus ass backsack balls bareback beard big balls big dom small sub biped brown balls brown body brown eyes brown hair brown markings brown nose carnotaurus claws digital drawing artwork digital media artwork dinosaur dominant duo english text facial hair feet from behind position genitals golden fox hair hi res horn humanoid feet male malemale male penetrated male penetrating male penetrating male mammal markings muscular muscular anthro muscular male nonbinary lore nude on bottom on top penetration penile penile penetration penis in ass perineum pink anus plantigrade presenting presenting anus presenting hindquarters purple eyes red beard red hair red panda reptile scalie sex signature size difference smile smirk spots spotted markings tail tail tuft teeth text theropod tuft white balls 9065977