osoba związana braterstwem krwi

He asked me once again if I wanted to be his blood brother.

They meet, become blood brothers and fall in love with the same girl.

This is similar, in many ways, to becoming a blood brother.

The two men knew each other vaguely, but could not be called friends, let alone blood brothers.

The younger boy had gone because he was the older's best friend, and his sworn blood brother.

He became a blood brother of Hal after his life was saved by the boy.

He was blood brother with her, take a look at the scar across his palm.

Eric was like a blood brother to her, Annie thought.

I search their faces, seeking my blood brother among them.

He had the same battle scars as me, we were blood brothers.