Saw my sister naked

This is in part a repost of my previous comment on another thread. <br><br>Saw my sister (21) naked today when she was getting ready to take a shower. She was in her room when I walked in on her. <br><br>I was expecting her to scream at me, but instead she just kind of looked at me. I could feel my face get flushed, but I looked at her for a moment and then left without saying anything. She didn't even get mad at me.