And Jack-Jack makes three

After a while, the boy and the girl decided that as much as they loved each other, it might be a good idea to spread the love around a bit.
The boy also read somewhere that most marriages last longer if there is a dog in the home, since even if both couples come home in a bad mood, there is always someone in the house to give you unconditional love.
So they got a dog called Jack, aka the Most Spoiled Dog in the Universe.
And unconditional love spread throughout the home. Ahhhhhh.