There’s an indentation on the face of a dog between the eyes above the snout that’s perfect for pressing into and kissing. It’s very nice to hold the kiss for a while, and it’s like the dogs know, for they treat the moment very serious.
If you really want to get along without the built in drama, history, grudges and strife, you’ve got to choose your family for yourself. Love and caring should not be an obligation you have, but a choice you make. Then sisters can be good friends.