FURVERT!

1:1 absurd_res against_surface animal_genitalia animal_penis anonymous_artist anthro anus ass_on_glass atlaswolf atlaswolfyt backsack balls butt canid canine canine_genitalia canine_penis canis day detailed_background domestic_cat duo erection felid feline felis fur genitals glass hi_res knot male male/male mammal markings nude on_glass outside penis perineum plant presenting presenting_hindquarters red_body red_fur sky spots spotted_body spotted_fur striped_body stripes white_body white_fur wolf