denk

I got two new little cowfishs today, so my first one (his name is Kurt) don't has to feel lonely anymore. They are very cute and can move their eyes independently, so you can see when they look at you. Now I need two new names for them, but the problem is that I don't know yet whether they are male or female, it will be visible when they get older, so the names must fit both sexes. And they must begin with a K, cause that's tradition.
Any suggestions?