rule 34 anal anal sex anthro anthrofied ballsack outline bent over blush boots bulge clenched teeth clothed clothing footwear yaoi furry furry only gang gay group group sex half closed eyes hedgehog holding penis humanoid penis line art looking pleasured lube male mammal midnightmuser motion lines naughty face no humans open mouth open pants orgasm face pants down partially clothed penetration penis prisoner sex shadow the hedgehog signature silver the hedgehog sneakers soina sonic series sonic the hedgehog spread legs spreading straining teeth threesome tissues underwear underwear down vein veiny penis yaoi 3103836