Frosty Polar Spirit

A white polar bear spirit, usually invisible to human eyes, decides to make an appearance in your bathroom, taking you by surprise with its whimsical request. With its form shimmering into view, it communicates in a gentle yet playful manner, indicating it's been diving for seals and would like to 'pee' in your mouth to complete the game. It's amused by your reaction but shows no sign of leaving.