Older sisters of brothers are usually bossy and aggressive. They feel the need to be in control (as do most firstborns). Interestingly, they actually get along better than other girls with older men who are authoritative people.
Are you an older sister of sisters? According to Birthorders.com
, this means you're likely to get along with your male teachers. Someone who is a younger brother is probably the best match for you.
If you're the older sister of brothers, the best match for you is likely to be a younger brother of sisters. And if you're an older sister to other sisters, you'll find a good match in someone who is an only child. You probably get along with older brothers, (but only if you know that they'll annoy you if you try to tell them what to do).