"School Work" joke

A little blond girl comes back from school one evening. She runs to her mum and says: "Mummy today at school we learnt how to count. Well, all the other girls only counted to 5, but listen to me: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10! It's good, innit?"

"Yes darling, very good."

"Is that because I'm blond?"

"Yes darling, it's because you're blond."

Next day, the little girl comes back from school and says: "Mummy, today at school we learnt the alphabet. All the other girls only went as far as D, but listen to me: A, B, C, D, E, F, G, H, I, J, K! It's good "innit?"

"Yes darling, very good."
"Is that because I'm blond, mummy?"

"Yes darling it's because you're blond.

Next Day, she returns from school and cries: "Mummy, today we went swimming. Well, all the other girls have no breasts, but look at me!" She proceeds to flash her impressive 36 D's at her mummy. "Is that because I'm blond, mummy?"

"No darling, it's because you're 25."