You find a lot of porn with the ladies using (or having used on them) speculums (speculae?) - either clear plastic (disposable?) or metallic ones, either vaginally or anally. I don't get the attraction to this as a porn item. I like seeing other things inserted - fingers, vibrators, dildos, bottles, vegetable, etc - but I don't get the attraction to the use of a speculum. Obviously, people like looking at this or you wouldn't find it. Can someone explain the attraction?