FURVERT!

absurd_res animal_genitalia animal_penis animal_vulva backsack balls becoming_erect becoming_erect_while_penetrating black_body black_fur border canid canine canine_genitalia canine_penis canine_vulva canis catahoula comic countershade_fur countershade_tail countershading domestic_dog duo english_text erection female female_penetrated feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral floppy_ears fur genitals half-erect hi_res husky intraspecies knot knotting logan_(dracanius)male male/female male_penetrating male_penetrating_female mammal nordic_sled_dog penetration penile penile_penetration penis penis_in_vagina quadruped sex sheath shelby_(sketchy_shelby)sketchy_shelby spitz tail text tongue tongue_out vaginal vaginal_knotting vaginal_penetration vulva white_border