Rule 34 Dev - 2020 anus ass_up blue_and_grey claws collar digital_media_(artwork) digitigrade dragon erection feral finger_claws fur furred_dragon genitals male membrane_(anatomy) membranous_wings monochrome paws penis pose presenting quadruped raised_tail rear_view sketch solo tapering_penis toe_claws viinazyl whiskers wings zeshapyra|4705125536