By birth I am an only child. By Marriage I am the oldest of 5 kids. One step-brother is 3 months younger than me. Then it's girl, boy, girl. There is a 6 year difference between me and the youngest. My step-siblings and I are pretty different personailty wise so we really don't get along too well. It seems we go through stages where I get along better with one, then none, then a different one. If my Dad hadn't divorced his last wife I'd have another 2 step-brothers, again one 3 months younger and then 2 years younger.