The Big ImageBoard (TBIB) - 1:1 2020 ambiguous gender ambiguous penetrated anatomically correct anatomically correct genitalia animal genitalia anthro anthro on anthro avian beak biped bird blush blush lines bodily fluids butt cloaca cloacal cloacal penetration clothed clothing columbid cuffs (clothing) daun dinosaur dove drawindonkey duo erection extinct eyes closed feathers from front position genital fluids genitals grey body grey feathers hadrosaurid heart symbol hi res male male/ambiguous male penetrating male penetrating ambiguous mastery position ornithischian ornithopod parasaurolophus partially clothed penetration penis pigeon prehistoric species reptile scalie sex size difference tongue white body white feathers winged arms wings