Pee challenge !! desperation and relief

I've been put to test at the PEE CHALLENGE! The challenge is simple (or not that much...) I must take a glass of water every 2 minutes and put my vibrator in my pussy... and last as long as possible without peeing... However, when I can no longer hold it in, I must immediately strip off my clothes before releasing my bladder... How long do you think I will last?...