rule 34 2019 3 toes 4 toes anus claws curved horn day dragon erection facial spikes feral frill anatomy full length portrait genitals glans grass grey body grey scales grey wings grin head crest head frill hi res horn ishiru knot looking at viewer lying male male only membrane anatomy membranous frill membranous wings nuri aureliusb on back outside pawpads penis pink anus pink penis pinup portrait pose purple eyes quadruped red body red feet red pawpads red scales red tail scales scalie sharp claws sharp teeth shy smile smooth horn solo spiked penis spikes spikes anatomy spread wings tail spines teeth toe claws toes western dragon white claws white frill white horn wings 4083425