Wet Voyeur

Your roommate always takes forever in the bathroom. What does she even do in there? She always walks out seeming so happy too... You decide to sneak into the bathroom while she gets ready. You managed to get in the door without being heard, but now you're breathing deeper and deeper as she pleasures herself with the faucet.
The water keeps pouring, and you keep getting closer to making a mess in your shorts... Don't get caught.