They are adorable! I agree with the previous poster, looks like the may have ear mites. I remember when my sister's cats were kittens they had them. From what I remember though it was an easy fix, the vet prescribed some drops.
TikiQT, I was referring to the little black flecks in the ears. If they're ear mites, the treatment is very easy, as Smaughunter said. A quick vet visit would be worth it. My cat had severe ear mites before I adopted her, and she has had trouble with her ears ever since. You don't want those two adorable little furballs having chronic ear problems later!