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OSOB Older Sister of Brother(s)

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Older Sister

of Brother(s)


First Born Older Sisters of Brothers are better equipped to lead their men to success than most other women. Why? They're top-notch leaders themselves.  This is not to say that OSOBs don't have their own designs on conquering the world, but they are naturally inclined to make their men the best they can be.

OSOBs in general (not just First Born OSOBs) intimately understand males' psyches - they know when to coddle a man's emotional needs when he's down in the dumps, and when to give him a firm kick in the butt when it's necessary.

Most heterosexual males are naturally drawn to the take-charge demeanor of Older Sisters of Brothers. Even their worst match - the domineering Oldest Brother of Brother(s) - finds them hard to resist.

Her Best (Hetero) Matches:

Y-BOS Younger Brother of Sisters (#1)

Last Born

Middle Child  


Last Born

Middle Child  

Twin - With a sister


Her Worst (Hetero) Matches:

*O-BOB Older Brother of Brother(s)

First Born

*OBOBs are the worst, unless turns can be taken or responsibilities and boundaries can be established for "who's in charge of what." These two types understand what it means to be a leader, they can relate with each other on many levels. Problems occur when one doesn't want to relinquish control of an issue to the other.

Famous Older Sisters of Sisters depicted above:

Sarah Jessica Parker, Katy Perry, Gwyneth Paltrow, Amy Poehler, Maggie Gyllenhaal

Meryl Streep, Taylor Swift, Jessica Alba, Emma Watson, Gigi Hadid

Emma Stone, Kate Winslet, Olivia Wilde, Kelly Osbourne, Princess Catherine


Betty Baker M.A. Psych, M.Ed

About the Author

Betty Baker is an awarded marriage and family therapist and contributor to the internationally renowned PeaceBuilders® Program - a science-based, research-validated violence prevention curriculum and professional development program for children, grades pre-K to 12.