Possible future names?

Kaitlyn
My boyfriend and I are in no way trying to conceive, however whenever we're in the car for long periods of time, we always end up trying to decide on names. So far we have come up with Kaesyn Robert for a boy (a mix of our names and his middle name), and we want Nichole for a girls middle name, but we can't decide on a first name. We like Karsyn or Kaedyn or Kaedynse, but we don't love any of them. His last name is Casey