I go to shower and hear someone that isn't my Mom.

I hear a voice that isn't my Mom's on the way to the shower. I look into the living room and see my mom and our neighbor Lily that lives right next door. Her and my Mom are like best friends. I say "hi," and ask if anyone needs the bathroom they both say no and continue their conversation. When I got into the shower I got naked, soaped up, and felt like someone was watching me. I looked to the mirror which was facing the door and saw Lily; peeking in the door and watching me shower. I felt so weird but I wasn't upset. I felt kinda horny, so I got finished in the shower, and as I did I heard footsteps running away; probably Lily. I got dressed in my normal clothes and was ready to walk to the store to start my new job. I walked into the living room, hugged my Mom, and said bye to Lily. Lily said to me that if I ever needed money, to go to her house and do some chores. How kind of her.