The royal bathroom is a stone room with a long wooden bench and several holes and seats for royalty to take care of business.  There are some tapestries depicting rural landscapes hanging on the walls to give people something to look at.
Royal Bathroom, Inside Castle
guard
king
I am a king of the whole empire. I give rules and pursuit them. I am brave and fearless.
That is your job. To guard me wherever I go.  Okay then, just let me button up my pants and you'll be all safe and sound. Have you seen any others in here. I have heard rumors of assassins. In the bathroom? I'll take a look around right away, my King.  Make sure to check behind the fine tapestries we have on the wall. Of course sir, I will look everywhere..I don't see anything there either. Perhaps the king would feel safer if he put his pants back on? The Royal Bathroom is used by many. That is why it is so large.  I believe it is just you and I in here now, my King. Perhaps we've been in here long enough. We will leave soon. I sometimes just enjoy the beauty of this room and the quiet from my demands. Okay, I'll just be over here guarding the door, minding my own business, totally not staring at the naked king in front of me. I need you to stay close so you can hold my scepter. Of course, King. It isn't awkward at all for the king to ask me to hold his sceptre in the Royal Bathroom.