FURVERT!

anthro anus backsack balls big_anus big_penis blush blushing_at_viewer butt canid canine canis darkened_anus ear_piercing erection fur genitals grey_body grey_fur grey_hair hair hi_res humanoid_genitalia humanoid_penis kryon_(kry0n_)looking_at_viewer looking_back male mammal nipples nude penis perineum piercing presenting presenting_anus presenting_hindquarters raised_tail rear_view resko_gothzebra simple_background solo spread_butt spreading tail white_background wolf