License question

[bethrye]

We currently utilize your calendar on this website:

http://vermillionchamber.com/

However, the customer is expanding their website and has an additional url that they would also like to use the calendar on here:

http://vermillioncvb.com/

Do we need to purchase another license for this to work properly? If we do that is fine, but I wanted to make sure we could still update the way we currently do without having to enter data twice if we have 2 licenses. Will we be able to update the calendar in one database and both sites will update simultaneously? Thanks!!!