He pet the cat at his lap, the cat start to purr quietly at his touch, he smile at the cat, and you pet the cat too. You both giggles.

"We'll make a cat family at home." You says and still pet the cat and the cat keep purring and meowing happily.

"Really?" His face lights up and you nod. He jump in place like a cute, happy child, even he is an adult now. "Yes! I want a cat family!" He smile widely and jump around while hugging you. "We really gonna make a cat family!?"