I really don't feel like helping out my sister with the housework.
Why are you not going to help your sister with housework?
She didn't take out the trash and that needed to be done.
You should try to help your sister out if possible. If you help her out this time, she may help you out next time.
It's fine if she needs help with housework.
I understand that a little annoying that she's not doing her responsibilities around the house. But if you don't help her out things will start piling up around the home.