Honey, I know she's your sister. Please don't take this the wrong way...you're the only one there to HELP these animals, but to her, you are enabling her to keep on doing what she's doing. You help, to keep these poor things alive, but in doing so, your sister sees you as a way to get her out of trouble each time she needs it and knows that you'll always be there again and again because you CARE.

You need to report her. The animals will go to a rescue or hopefully a non-kill shelter and she'll have to deal with the law - and see that her sister will no longer bail her out. She will then see that the only person that was bailing her and her animals out is the one that called her out and wont be there in the future to bring food and toys to her animals and maybe she'll stop, thus ENDING her cycle.

I know it sounds mean and heartless. But if your sister can do this to poor, defenseless animals. Creatures that need food, water, a clean, warm surface to sleep, roof above its head and a safe place to live - and she purposely will NOT provide that - there's something mean spirited about that. If she decides not to like you anymore, you aren't missing someone that does nice things.

We like and appreciate you here. And you can start using your time and $$ on animals that may go to forever homes, instead of the animals your sister continually abuses.

I hope I don't sound too harsh, I honestly don't mean to be. But I think that to stop the cycle of what she's doing - and what you try to do to correct and help - this is the ONLY solution, hun. You are so kind to help these animals she does this to, you really are.

You CAN call Anonymous too I think. That could preserve your relationship if you still wanted it...

Hugs, Kelly

EDIT to add:
Freedom has a good idea...volunteer at or at least call to see what happens to animals that are taken from homes when reported. Or, you could line up homes via rescues and then call in and report her, giving them names of rescues and having the reps from the rescues waiting at the facility when they pick up the animals to be CERTAIN they go to the rescue. If your sister still has KITTENS, those will go to homes very quickly. If she has kittens, that means she's having lots of litters, nice.