User blog comment:DPSII/Poll of Leo's relationship with the Loud Kids./@comment-39136273-20190807003806

I think you should completely phase him out, if he was a sibling, it would kinda ruin the point of "1 boy, 10 girls". And plus, we don't even know their cousins (To be honest, I'm getting tired of people making their OC's as the Loud's cousins just for an excuse for them to be a thing).