My Hero, No, My Idol

Who is your hero? Someone questioned me, I'll tell you all about her, So, please listen to me. She doesn't wear a cape, Or an iron suit, She doesn't turn green, In fact she's kinda cute. She hasn't got a hammer, To change she doesn't spin, She doesn't sling webs, However, she is my kin. She held my hand when I was little, I always looked up to her, She sat with me on Christmas Eve, While I hoped to see Santa there. She made me laugh, She wiped away my tears, She gave me strength, As I faced my fears. She was beside me when I married, I stood in awe as she raised her son, We talked way into the night, She's always so much fun. I don't need a hero, I have an idol instead you see, She is my big Sister, She means the world to me.