Rule 34 Dev - 2020 accessory anthro anus balls belly bowser claws close-up collar erection genitals hair hi_res horn humanoid_genitalia humanoid_penis jetshark looking_at_viewer lying male male_only mario_(series) musclegut nintendo nude on_back overweight pecs penis red_eyes scalie shell solo spikes spread_legs spreading tongue tongue_out uncut vein veiny_penis video_games|4163435864