FURVERT!

anal anal_penetration animal_genitalia black_body black_scales blue_body blue_horn blue_penis blue_scales cutaway digitigrade dragon duo erection european_mythology fellatio feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral genital_slit genitals hi_res holothurian_(furredleviathan)horn internal internal_anal knot knotted_penis lying male male/male male_penetrated male_penetrating male_penetrating_male membrane_(anatomy)membranous_wings mythological_creature mythological_scalie mythology nightwing_(wof)on_back on_hind_legs oral oral_penetration penetration penile penis purple_knot purple_penis quadruped scales scalie sex shaded shiaz spikes spikes_(anatomy)tail thick_tail ventral_scales western_dragon wings wings_of_fire wyvern xulakhisis_(kalemendrax)