The Height of Discussion

The teacher asked her Biology class, “Does anyone know why girls tend to grow taller than boys during childhood?”

Frankie raised his hand and replied, “That’s because a guy has balls and that weighs him down.”

The teacher was a bit annoyed but decided to humor the notion, “Then why at maturity do men tend to grow taller than women?”

Frankie cooly replied, “That’s because a girl gets breasts, and they’re heavier than a guy’s balls.”