@Bow 

We got Ryker in a similar way.  A friend of my partner fostered kittens and she had to go away for a week so we we're asked to look after tiny little Ryker while she was away.  Needless to say, he's still here 7 odd years later 😁

I'm not sure I could foster.  I would have so much trouble giving them back!  But it would be so awesome to have little cuties around for a while like the three you currently have.  I would have to tell them the same thing.... don't let me adopt any!  No matter what I say!!