With Google Now, can I ask for directions to one of my contacts?

I understand I can send an SMS or email to a contact, but I can't figure out how to ask for directions to the contact. Is there a voice command for Google Now that will pull up directions to a contact's address? If so, what happens if the contact has more than one address? If there isn't a way to do this currently, is there a shortcut to pull up the Contact record, where I can click to the map?