Rule 34 Dev - anthro arched_back armpit_hair beak body_hair chest_tuft erection genitals humanoid_genitalia humanoid_penis looking_at_viewer lying male nipples nude on_back penis pose solo tail tuft wings eyrich mythology vertigo_(character) avian bird gryphon mythological_avian mythological_creature 2:3 hi_res monochrome sketch|5310605965