Just realised I forgot to thank Lauri's RL husband, Kento for helping me out with the correct Japanese form of address for the boys to use towards Carmen. Thanks Kento, I really appreciate it. :)
I'd prefer comments over at Boolprop please. It's easier for me to keep track of and respond to them that way. However if you don't have a boolprop account, you can of course comment here.