Sometimes I urinate in my mom's bathroom sink.
Why do you do this exactly?
I like to be able to wash with clean water afterwards.
If you want to pee in a sink, then you should probably keep it to your own sink, don't you agree? Your mother might be hurt if she finds out you're peeing in her sink.
I know.
I'm glad that you know it is inappropriate, does this mean that you won't do it anymore? I'm sure you mother will be happy to hear that!