A blonde girl comes home from school one day and tells her mom: "We were learning our numbers today and everyone else could only count to 5, but I could count to 10. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10!"
Her mom tells her "Great job honey!" The girl asks her mom "Is it because I'm blonde?" Her mom tells her: "Yes it is."
The next day the blonde girl comes home from school and tells her mom: "We were learning our alphabets today and everyone else could only get to E, but I got to J. A, B, C, D, E, F, G, H, I, J!"
Her mom tells her "Great job honey!" The girl asks her mom "Is it because I'm blonde?" Her mom tells her again: "Yes it is."
On the third day the blonde girl comes home from school and tells her mom: "Today we were in the showers after gym class and all of the other girls were flat chested, but I have these!" Whereupon the girl lifts her shirt revealing very large breasts.
Her mom tells her "Um... Great job honey." The girl asks her mom: "Is it because I'm blonde?"
Her mom replies "No dear, it's because you're 25."