Tilly has peed into a graduated cylinder several times before, but this is Linh's first time. Both girls have been drinking steadily for some time and need to pee quite badly. Nevertheless, they agree to hold it in until they can't wait any longer, then release into the cylinders. The objective: to see who can pee the most. Let the challenge begin!

Tilly has peed into a graduated cylinder several times before, but this is Linh's first time. Both girls have been drinking steadily for some time and need to pee quite badly. Nevertheless, they agree to hold it in until they can't wait any longer, then release into the cylinders. The objective: to see who can pee the most. Let the challenge begin!