I'm 19 and Jacob is 23. He's my half brother. We never really met or knew each other well until about a year ago and from that time on, I knew we were going to get along great. His dad and our mom moved in together after a long time of separation and Jacob and I have our own wing of the house basically. Our mom and his dad decided they would need their privacy and that we got along well enough to share a side of the house...