FURVERT!

anal anal_fingering anal_penetration anthro anus backsack balls big_butt blep butt clothed clothing disembodied_hand duo echidna feet fingering footwear genitals half-closed_eyes hi_res knuckles_the_echidna legwear looking_at_viewer looking_back male mammal monotreme narrowed_eyes nude penetration presenting presenting_anus presenting_hindquarters purple_eyes sega sitting socks soles solo_focus sonic_the_hedgehog_(series)squish_(artist)tongue tongue_out