Would you be upset if your boyfriend peed on you ? (Read description for scenario)

I was showering with my boyfriend and he decided it would be funny to P on me after I had already finished soaping up and rinsing off. This was not just a little P on my leg he decided to draw a picture on my stomach and up my chest to the point that a little bit of it fell in my mouth. I got very upset with him saying it was disrespectful and honestly disgusting that he would do that. And he told me to get over it that he was going to do it again . Thoughts ?