Mom was in the kitchen preparing breakfast when her daughter came in and said, "Mommy, I can say my ABC's better than anyone else in the second grade. Is it because I'm blonde?"
Her mother looked at her and said, "Why yes dear, it is."
Proudly, the second grader said, "Mommy, I know my numbers better than anyone else in the second grade. Is it because I'm blonde?"
Again, her mother said, "Why yes dear, it is."
Then, the daughter said, "Mommy, I have the biggest boobs in the second grade. Is it because I'm blonde?"
This time, her mother shook her head and said "No, dear, it's because you're eighteen."