How come you can't poop and pee at the same time?

Poll of the Day

Every poo poo time is pee pee time
But not every pee pee time is poo poo time

Do you ever think about that?
I'm a girl. I have to put this in my signature because some people still think its cool to play gender police https://i.ibb.co/dp7PWcx/cz3qFEJ.png