1. What is it?

Siblings are one’s brothers and/or sisters. Sibling relationships refer to the quality of relationship one has with these brothers and sisters.

In literature, sibling relationships may be positive and supportive, or set them as adversaries.

2. How is it made?

3. Examples in literature

Little Women 
by Louisa May Alcott

Excerpt from Chapter 36:

Jo could not speak, and for several minutes there was no sound but the sigh of the wind and the lapping of the tide. A white-winged gull flew by, with the flash of sunshine on its silvery breast. Beth watched it till it vanished, and her eyes were full of sadness. A little gray-coated sand bird came tripping over the beach ‘peeping’ softly to itself, as if enjoying the sun and sea. It came quite close to Beth, and looked at her with a friendly eye and sat upon a warm stone, dressing its wet feathers, quite at home. Beth smiled and felt comforted, for the tiny thing seemed to offer its small friendship and remind her that a pleasant world was still to be enjoyed.
“Dear little bird! See, Jo, how tame it is. I like peeps better than the gulls. They are not so wild and handsome, but they seem happy, confiding little things. I used to call them my birds last summer, and Mother said they reminded her of me—busy, quaker-colored creatures, always near the shore, and always chirping that contented little song of theirs. You are the gull, Jo, strong and wild, fond of the storm and the wind, flying far out to sea, and happy all alone. Meg is the turtledove, and Amy is like the lark she writes about, trying to get up among the clouds, but always dropping down into its nest again. Dear little girl! She’s so ambitious, but her heart is good and tender, and no matter how high she flies, she never will forget home. I hope I shall see her again, but she seems so far away.”
“She is coming in the spring, and I mean that you shall be all ready to see and enjoy her. I’m going to have you well and rosy by that time,” began Jo, feeling that of all the changes in Beth, the talking change was the greatest, for it seemed to cost no effort now, and she thought aloud in a way quite unlike bashful Beth.
“Jo, dear, don’t hope any more. It won’t do any good. I’m sure of that. We won’t be miserable, but enjoy being together while we wait. We’ll have happy times, for I don’t suffer much, and I think the tide will go out easily, if you help me.”

Pride and Prejudice 
by Jane Austen

Excerpt from Chapter 4:

When Jane and Elizabeth were alone, the former, who had been cautious in her praise of Mr. Bingley before, expressed to her sister just how very much she admired him.
“He is just what a young man ought to be,” said she, “sensible, good-humoured, lively; and I never saw such happy manners!—so much ease, with such perfect good breeding!”
“He is also handsome,” replied Elizabeth, “which a young man ought likewise to be, if he possibly can. His character is thereby complete.”
“I was very much flattered by his asking me to dance a second time. I did not expect such a compliment.”
“Did not you? I did for you. But that is one great difference between us. Compliments always take you by surprise, and me never. What could be more natural than his asking you again? He could not help seeing that you were about five times as pretty as every other woman in the room. No thanks to his gallantry for that. Well, he certainly is very agreeable, and I give you leave to like him. You have liked many a stupider person.”
“Dear Lizzy!”
“Oh! you are a great deal too apt, you know, to like people in general. You never see a fault in anybody. All the world are good and agreeable in your eyes. I never heard you speak ill of a human being in your life.”