Kat0010, welcome to the Pet Talk forum.

If your two cats continually want inside, what is keeping them from being so, or who set the restrictions against the two of them being inside. Cats are best cared for and safest inside. I lost my Cookie cat (killed) the other day because of letting her outside. If you cannot let them inside the next best thing to do is to build them a little house somewhere where they will be safe from predators. Perhaps up in a tree, or on the side of your house, where they can gain access, but can also escape any predators. Also it should be a warm place for them. I do not know of your circumstanes, but perhaps you could present them more complete.