Can you confirm yancy .
Female alien's have to train to pee and poo separately so that all their urine can be recycled into drinking water without faecal-traces..
So this is actually more difficult than you think.
Do not multi-task ladies . One job(bie) at a time .
I assume the same muscles are involved so if you need a poo you end up with wee too. And sometimes a wee will end up with a poo you didn't know you needed when you sat down.