As people who have been writing about cats for a long time now, we have come to a very simple conclusion. Cats decide when to get adopted. Yes, they do. You only think that you're going to adopt a cat. In fact, the cat is adopting you. And when a cat decides that it is time to get adopted, the world simply has no choice but to comply. The internet has named this phenomenon "The Cat Distribution System", and it is definitely a real thing.
How else would you explain something like this happening? Two cats appear in a woman's backyard and then just… never leave. It was their time. They have chosen. They have decided that they have had enough of this street life and that they now want to be spoiled by a very gentle, but sometimes clumsy, giant who feeds them and pets them and loves them. And that's that. Once they have decided, the CDS provided, and instantly, they got their furrever home.