FURVERT!

after_sex all_fours anal anal_penetration anthro anus backsack balls bodily_fluids butt close-up cum cum_in_ass cum_inside cum_on_anus cum_on_balls doggystyle duo echidna erection eulipotyphlan from_behind_position genital_fluids genitals hedgehog hi_res knuckles_the_echidna lying male male/male male_on_bottom male_on_top mammal monotreme nude on_bottom on_front on_ground on_top orgasm penetration penis presenting presenting_anus presenting_hindquarters red_balls sega sex simple_background sonic_the_hedgehog sonic_the_hedgehog_(series)spread_legs spreading squish_(artist)tan_balls thick_thighs white_background