Right, so, to follow-up...
I have a room @ Gracery with two twin beds reserved for the nights of the 1st, 2nd, 5th, and 6th.
If the girls are okay with it, I'm okay with sharing a room with both of them. But, like Brook says, this will probably end up with someone on the floor, since I don't think the twin beds are big enough to host two people (especially not if one of them is me).
However, the 3rd & 4th I'm still rooming with Nick. note: this does not preclude other people also staying with us, it's just that I promised Nick that he could stay in whatever room we got for the nights of the 3rd & the 4th.
Converse!