FURVERT!

amypast_(artist)anal anal_penetration animal_genitalia anus balls black_body black_fur black_membrane digitigrade dragon duo erection feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral fur genital_slit genitals grey_body grey_scales hi_res knot livyathan male male/male male_penetrated male_penetrating male_penetrating_male mana_(manaaa)membrane_(anatomy)membranous_wings mouth_grab mythological_creature mythological_scalie mythology penetration penile penile_penetration penis penis_in_ass perineum pink_anus pink_knot pink_penis quadruped red_body red_fur scales scalie sex size_difference smaller_penetrated snout_grab tail tail_tuft tuft ventral_scales white_balls white_body white_fur white_scales wings