Brother fucks Natasha

My name is Natasha and i am 15 years old. I still live with my parents, and we have a very normal family. My brother is 25 and is married and living up north with his wife. He is a very handsome man, not that a sister should notice, but i do.

He came down last weekend for a visit with the family as his wife had left to see some family back home. Most of time that he comes and visits us things are normal. This weekend was different. He showed up that evening and things we good. Things happened to turn out that my parents had to leave to visit a sick friend, so that left me and my brother. It was bed time and it was getting late and he was taking a shower. I was getting ready for bed when i hear a knock on my door. I know that my parents had not arrived at home so it must be my brother. I open the door and he is standing there in just a towel.