Well, the names are dissimilar enough... Many parents name sons
John and
Joseph, or
James and
John, even those who aren't twins. J names aren't so twinny to me, for some reason.
I don't like
Justin James though. That overdoes the Js imo. But I
love Morgan on a boy, and I think it's nice that they used
Morgan as a mn for
Joseph.
I don't particularly like the nn
Joey. It sounds childish and
Friends-y to me. Besides, it's two syllables, the same as
Joseph.
Joseph therefore, imo, doesn't need a nn unless the child himself wants to go by
Joe or
Joey... or even
Joss.
Miranda