I am an only child in the family, and I have always wanted a big brother to look up to. One day I met Jason and made friends with him. Ever since then he's like a brother to me.
 surrogate brother godbrother like a brother to me英語中沒有乾哥哥或乾弟弟的說法, 所以白話翻譯. like a brother to me 是最常用的.