[quote=@Lucius Cypher]
Considering Mamoru is based off a pokemon and every pokemon Kat’s eggs regardless of their vague biology, I wouldn’t even be surprised if Mamoru happens to lay a few duds. Though I wonder if their personal traits affect the quality of the egg? Like Mamoru’s eggs having a hard metallic shell or something.
[/quote]

I could see that. And, they would be self-cleaning; no dust or dirt around them at all, but they take a while to make the clean happen -- Mamoru's Maid Class and laziness inherited by them. XD