1 Macbook, 2 iPhone Accounts, Syncing iCal?

Hi,
My wife and I both have iPhones and we have a Macbook, our iPhones have different accounts, mine and hers. However we love the feature where I can put something on iCal on the Macbook and it appears on my phones calendar and wondered if there was a way to get it to send the things on iCal to both our phones so we work from one calendar but both accounts share it?

Essentially I always forget to tell my wife things I have arranged, this way they would appear on her phones calendar too.

I have searched forums but can not find an answer.

Cheers,
Phil

Do you and your wife have separate iCloud accounts? probably the easiest way to do this is to make a calendar then share it with each other.
iCloud: Share a calendar with others