I'm thinking of doing a protection spell for my niece and nephew (both minors). I'm their godfather in the RCC. They and their mother (my sister) live with me. Their father died a few years ago and so I've had to step into the godfather role in a full-time way. I'm not a legal guardian, though. I have no doubt my sister would consent to me doing a magical spell to protect them but I'm wondering, do magical ethics require it? As far as the RCC goes, I can give them blessings and perform a role similar to what their father would have.