YAG-023 - Training my little sister like a pet when Mom's away

Mom is working late again today. Since there's a big age gap, I've been taking care of my little sister since we were kids; I know her body better than Mom ever could. I drove out to a deserted mountain road, put a coat and a collar on Nano, and took her for a walk. When she said she had to pee, I just let her do it right there, just like a dog.