abs balls bone_frill ceratopsian ceratopsid chasmosaurine dinosaur duo e621 erection fellatio frill_(anatomy) genitals male male/male male_penetrated male_penetrating male_penetrating_male marginocephalian mewwie monochrome muscular oral oral_penetration ornithischian pecs penetration penile penis prehistoric_species reptile scalie sex triceratops

Edit | Respond