Is it normal for my girlfriend to pee in front of me?

Last night I was in the bathroom brushing my teeth etc, getting ready for bed. The door was open and my girlfriend came in. She stood for a few seconds then looked at me shyly and said "pee", then she pulled down her pyjamas and pants, and sat down on the toilet and then... well went haha. She wiped and everything in front of me. We've been together nearly two years, but she's not done that before! Is this normal?
Is it normal for my girlfriend to pee in front of me?
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