2018 4_toes anthro anthro_on_anthro anvil_position balls bed black_fur blue_eyes blue_scales claws collar countershading cuntboy cuntboy/male dragon duo erection fur hands_behind_head horn intersex intersex/male interspecies kemono larger_intersex leg_grab legs_up lying male male_penetrating muscular muscular_cuntboy muscular_intersex navel nipples nude on_bed open_mouth penetration penis pngx_(artist) scales scalie sex simple_background size_difference smaller_male teeth toes tongue tongue_out vaginal vaginal_penetration white_fur white_scales