FURVERT!

anal_request anthro anus backsack balls big_anus big_balls big_butt body_writing bowser butt english_text genitals hair hand_on_butt hi_res insanysage koopa low-angle_view male mario_bros muscular muscular_anthro muscular_male nintendo oral_request puffy_anus raised_tail red_hair requesting rimming_request scalie sex_request shell solo spiked_shell spikes spikes_(anatomy)tail text vein veiny_muscles worm's-eye_view