To Pee, Or Not To Pee

Master has a secret desire to pee on me. I just found out about it a few weeks ago. Now I don't know how I should feel about it. It sounds far from hygienic, but the idea of doing something I don't enjoy for his fulfillment intrigues me. He keeps on asking whether it's okay by me, and I've googled about it and find that it's not really weird to have a piss fetish, but I don't know...