It's after hours at Rafael Hernandez, an elementary school in the Bronx, and Room 421 is in an uproar.
It's what you would expect from a sixth-grade sex education class learning how to put a condom on.
Sex education: The very concept makes a lot of people cringe, conjuring images of teenage giggles and discomfort. It's also a subject a lot of teachers would rather avoid.
But Bronx-based teacher Lena Solow is more than happy to talk about the birds, the bees ... and beyond.