Although these siblings are tight, they are tight with all. People bring home a puppy from one litter and another brings one home from the other mom that were born around the same time. They often do not realize that they are so connected and to them - this is family so when they see each other, they get mighty excited after they go home and connect again.
I love the relationships that they develop and with this 2 crew the meshing was instant. It was quite nice!
Videos are already up and they are having fun with this toy.