"Steven?" Peridot asks somewhat timidly, looking over to the human-gem boy with curious and wide eyes.
"Yeah Peridot?" Answers the hybrid boy.
"What is a heartbeat?" She asks, large head tilted to the side slightly.
"Here, lemme show you!" Steven says with a slight chuckle to his voice. He ushers her over, and lets her sit down. He then takes the small gem's head and presses it gently to his chest. Peridot tenses up, but she then hears the gentle, calm thrumming of Steven's heart. Her eyes widen in wonder as she listens to the calming, steady beat.
"Wow... How does it.. Do that?" She asks. Steven smiles.
"It's a muscle. It's called the heart. It pumps blood around the body in most animals. At least, that's what I read online." He says.
"You earthlings truly are fascinating creatures..." Peridot mutters, feeling ever so slightly drowsy as it continues to thrum in that same, relaxing rhythm.
The two would end up falling asleep on the floor later that night, Pearl finding them protectively hugging one another in their comatose state.
"You'd better take care of him, Peridot." Pearl whispers as she grabs a plaid blanket and covers the two carefully.
"He's worth more than you know."