You have each other
Everytime when they were arguing and said to each other "I'm not going to play with you!!", then I would tell them "You only have 1 brother/ sister, if you don't play with each other, no one else will play with you."... They do love each other, they enjoy each other's company. They laugh, they play, they eat, they argue together and they also miss each other when apart.. xoxox
I asked Yoshi to teach Kiharu how to write her name in Japanese, so he helped her "dotted" her name on the paper, and had her followed.