Then the professor raised his hand. "One more. Describe this class."

Professor Alvarez nodded. "Perfect. Así son when they practice."

The class laughed. Luna whispered, "Mine too."

In the third row, Mateo and Luna exchanged nervous glances. Estructura 3 was always the hardest.

He pointed to Mateo. "Describe your sister."

"Your turn, Luna," said Professor Alvarez. "Describe your best friends."

And Mateo and Luna? They finally understood: Así son wasn't just grammar. It was acceptance.

Mateo tried again. " Así son mis hermanas. Impacientes y ruidosas."