I am out of the house and on my own but I live nearby. My sister is 14. Three years ago, Dad god married to a new woman named “Sara.” My sister and Sara got along in the past, but Sara got on the baby track fast. She is currently pregnant with baby No. 3. The house is messy and noisy, and my sister hates it. She is not getting any sleep and resents getting pressed into baby wrangling as soon as she steps in the house. Since school started, she has been sleeping over nearly every night at my place. I don’t mind, but Sara does. She complains that I am undermining the family and encouraging my sister’s rebellion. Dad isn’t home often and doesn’t really care. My sister is a good kid, gets straight A’s, etc. She just wants to get a full night’s sleep.
How do I deal with Sara?