Re: Brother/sister baths
I'm pretty sure I had baths with my brother at that age. I'd go with the flow. If you start to notice one feels embarrassed or uncomfortable with it then you stop. Or maybe when the older one is old enough to wash herself without help. You might even be able to switch her to having showers in a year or so.
Mommy to sweet daughter
K Nov 2011 & new
N May 2013. Wife to wonderful husband D since Sept 2008. Always remembering baby J 10wks