My girlfriend pees while i eat her out

Hey. Im a 19 year old guy. My girlfriend Julia, is a few months younger. We recently started "trying things" when we decide to to sexual acts, if you know what i mean.A couple weeks ago, i was about to eat her out, while she was sitting on the edge of the bed, and she asked if she could pee while i licked her. I debated it with her for like 5 minutes, then she just said,"Just try it, you might like it". Then i gave in and said ok. She peed a little to start off with then she peed until she decided to stop. I told her i liked it, and now she does this damn there everytime i eat her out. Is this a normal act? I know what your thinking; "This guys a crackhead!" Well no. If you are thinking that, then don't bother commenting unless you have an answer to this post.