FURVERT!

anal anal_penetration back_spikes black_body blue_body blue_scales bodily_fluids cave cavern crystal cum cum_from_ass cum_in_ass cum_inside dragon duo feral firael genital_fluids genitals hi_res horn knot male male/male membrane_(anatomy)membranous_wings multicolored_body mythological_creature mythological_scalie mythology orgasm orgasm_face penetration penis pink_tongue purple_body purple_knot quadruped rock scales scalie spikes spikes_(anatomy)tail teeth tongue tongue_out ventral_scales white_horn wings yellow_body yellow_scales