I theorized that Kelly was born with Grimm abilities already awoken, like he could already see Wessen woged and be just aware of it, and is okay with it. I remember a Wessen woging in front of him and he was smiling. I don’t know if that was what they were going for or that was just “Look at the cute baby.” Thoughts?

Hmmm…that’s an interesting theory! I actually kind of like that idea: that he grew up seeing Wesen from Day One so it was never strange to him. Although it would certainly make him unique in his world, as from what little we get in the show it seems like almost all Wesen get their first woge as teenagers, kind of like puberty, and Grimms don’t necessarily have it from birth either though it’s unclear exactly when the onset is or how consistent it is.

I wonder what about having a Hexenbiest mother and a Grimm father would do that? Or could it have something to do with the twinning spell somehow? The rules of magic in this world are murky.