Calling cps on my step sister

My step sister has also been a fucking weirdo. Idk how to explain it. She just had a baby 5 weeks ago. Doesn't know who the father is. It's between a man at her job and a barely legal 18 year old. She's almost 40 fucking barely legals! My step mom called me saying she's concerned about her granddaughter. I said why and she sent me a pic of my step sisters phone. She sent a picture of me nieces privates to some number and said "Tight enough for you?" And whoever replied "😈😈😈" I told my step mom to call cps now and she said it could be a misunderstanding. What kind of misunderstanding could be with a message like that with a picture of my 5 week old nieces privates! So I made the call since my step mom obviously wasn't going to. My step mom made my father cut me off because the baby has been removed my step sisters care.

Adrienne: She's under investigation