FURVERT!

2021 anthro armband belly big_belly big_bulge big_muscles black_background bowser bulge clothed clothing erection erection_under_clothing eyebrows greyscale guide_lines hair hi_res horn huge_bulge huge_muscles koopa looking_at_viewer low-angle_view male mario_bros monochrome musclegut muscular muscular_anthro muscular_male navel nintendo nipple_piercing nipple_ring nipples pecs piercing rakomadon ring_piercing scalie shell simple_background solo spiked_armband spiked_shell spikes spikes_(anatomy)standing tenting underwear