They are both indoor cats that got out big deal!
You're right, it is a big deal. A huge deal, actually.

I am glad that you are taking such good care of these babies, I really am, but that is not the issue here. There are millions of shelter animals dying and you have just let your cats breed. As a person very involved in rescue and taking care of cats from "oops" litters every day, this really upsets me. Good for you for having homes lined up for the cats, but did you ever stop to think that these are families that could have adopted from a shelter and saved lives?

And in addition to taking away homes from rescue animals, you have also put stress on your girls by letting them have litters. Please spay and neuter all of your animals.