My real answer is both. Hide the lineage of the children by being with Pepper but we know who the true love is. Risk one (or both) of the women getting jealous and making complicated demands that further amp up the pressure. Will one end up destroying the other? Could Pepper find out the truth and blackmail her husband or his lover? What would it drive her to do? Or if Magi decides she can't handle him being with another woman, will it make her sloppy in her duties or drive her to revenge, a force of unhinged, destructive power? Anything could happen! >:)