Thanks ladies for the advice. I can't even change the baby with my oldest around.

I think 3 and under

I depends on their age. Once they know what private parts are, they need separate baths.

@traceykendra, maybe the she's getting too old?

Depends on the age. Under about 5 is fine

@nerualauren my 6 yr old is asking a lot of questions when I'm changing her brother.

I think when tiny it's ok... depends on how old they are.