It's always hard training two puppies of the same age at the same time. I think it's called 'litter mate syndrome ' I may be wrong though.
I do the same as a poster further up thread. Finger to lips and a shush quiet command, as soon as they are quiet I throw a toy for them or have a game of tug.
So long as they are not out there on their own, barking their heads off I can't see the problem.
How do you acknowledge Easter.