The Blonde at School

Day1: A blonde comes home from school and says to her mum, "We learned how to count up to 5 today mummy. I got up to 10. Is it because I'm blonde, mummy?"

Mum replies: "yes dear"

Day 2: "We learned how to do the alphabet today mummy. The others only got up to E and I got up to S. Is it because I'm blonde, mummy?"

Mum replies: "yes dear"

Day 3: "We learned about breasts today mummy. All the other girls are flat chested and I'm a 36DD. Is it because I'm blonde, mummy?"

Mum replies: "No dear, it's because your 25.