Brother's Best Friend

hey! I'm Jamie Jacobs, a 16 year old girl cursed with being a loser. My life was hard enough as it is, without my dick head of a brother inviting his douchebag of a friend to spend the summer with us. After a few weeks of bickering, am I starting to get the hots for him? Does age matter?...It's only 4 years...Right? My brother would kill him.