2016
anthro
argento
black_and_white
boxer_briefs
bulge
butt
clothing
echidna
grin
half_naked
hi_res
knuckles_the_echidna
looking_at_viewer
looking_back
male
mammal
monochrome
monotreme
presenting
presenting_hindquarters
raised_leg
sega
shirt
simple_background
smile
solo
sonic_the_hedgehog_(series)
topwear
underwear
