Keith could see the confusion in Shiro's expression and it made him grin at his innocence, and how much he'd love it if he actually were to taste it. Which reminded him. He had some leftover pizza in his fridge the other night. Whenever he felt hungry he'd bring some of it over for the merman while he ate for himself. But now he wasn't hungry, instead he was curious to know what this creature liked and disliked. He gave a small grin at how he was obviously liked by the merman, and with a raised brow, Keith decided to do the same to his own character. He drew a line from his likes over to the merman, finding the opportunity too good to pass up. 

But when the comparison to dorsal fins began, Keith couldn't help the breathy chuckle that came out afterwards and shook his head, comforting the other that he wouldn't eat him. Instead he pointed towards the squid that he drew for his own little merman and brought his two index fingers together, trying to say that they're almost the same in terms of deliciousness but he was sure it wasn't understood. So, once more, he gestured at him to stay where he is before he skipped back to the shack with an unmatched excitement. 

Again he took little time in returning, the pizza box in his arms as he sat down beside him again, whatever warmth left in the sand warming him up as the cold of the night began to settle in. He crossed his legs and opened it, grabbing a slice and handing it to the merman before he rested it next to him before he remembered something else he liked. Leaning forward, he drew another line and drew a circle with a few smaller circles on it, then pointed up to the moon.