Because the twins are not the same gender, I think it's tolerable, but barely. :)
Tomas and
Tamsin share way too many sounds to even be sibling names, in my opinion.
1.) I would like
Tomas Kai much better.
I like
Tamsin and
Corinne but they are too rhyme-y together.
2.) Yes.
3.) Yes.
The nicknames help, though.
Three boys nappin', one mama namenerdin'
To peruse my top 100ish names:
http://www.behindthename.com/pnl/82589
He is becoming greater, I am becoming less
Bits of the journey here:
http://jodifriesen.blogspot.ca/And some family cuteness here:
https://www.flickr.com/photos/41705228@N08/