My very favourite type: voyeur, innocent, sneaky shower pee, with a yellow puddle clearly visible on the white background. Let's have a dedicated thread for it, I bet there is much more enthusiasts of this niche (mods, please!).
Many movies are already posted in different threads, let's not double them, but post a link with a screenshot and exact time.
Let me start:
Cute blonde makes the water yellow when her boyfriend is not watching (02:25).
Scroll through it faster, to see it even more evident. Notice the second angle in the mirrror.
link to this forum