It's what I thought, but I was hoping someone had an idea I hadn't thought of. It's annoying to see the male hoard all the chew toys - and not even chew on them himself.
It also plays out in jealousy. They don't like for one of them to get attention from us, and not get it themselves. And it's the same thing, too - if I show attention to one, it doesn't matter that my wife is giving attention to the other - we both "belong" to them. It's not just "this is MY mommy" it's also "and that's my daddy and stay the hell away - ok, I'm coming over there". Most of the time, they're content enough or can be consoled enough to not get jealous. Last night, my wife was clipping their nails and as the vet showed us, distract them enough either with a treat or lots of attention, and they won't care. So I do know if they're contented enough, they don't fuss.
I'm basically a little worried about our adoption which is looming. I've heard that dogs can be enormously jealous of children. It's one thing for them not to share with themselves but children are going to make it more complicated, because in the whole dominance structure, they're simply bigger than the children - for a while.