What does No-bra means?

A probably cute story about a siblings

Little sister - Hey,hey big brother!

Big brother - What is it?

Little sister - What does No-bra means?

Big brother - hmmmm...it means that you don't wear any underwear except for the bottom part

Little sister -·······*touches her chest*

Big brother - My little sister,where did you learn that word?

Little sister -*raises her shirt*I am wearing No-bra today!

Big brother - NOOOOOOOO!!!!!!!A GIRL MUST NOT DO THAT!!!!!!!!!!!!

THE END