FURVERT!

animal_genitalia animal_penis anus butt claws dragon dreamworks erection european_mythology feral fury_(httyd)genital_slit genitals hand_on_leg hi_res how_to_train_your_dragon knot knotted_penis lying male male_feral membrane_(anatomy)membranous_wings monochrome mythological_creature mythological_scalie mythology night_fury on_back penile_spines penis presenting presenting_anus presenting_hindquarters presenting_penis reclining redishdragie ridged_knotted_penis ridged_penis scales scalie simple_background sketch smile solo spikes spread_legs spreading toe_claws toothless western_dragon white_background wings