“I’m hungry!” Jack whined.
Ianto didn’t even glance his way. “You’re always hungry, you’re like a bottomless pit of hunger that can never be filled.”
“I have to eat a lot, being immortal takes more fuel than you might think. The vortex energy that heals me needs raw materials to work with, they have to come from somewhere,” Jack reasoned. “If I don’t eat enough it takes me longer to recover when I’m injured or killed, and leaves me feeling drained.”
“Makes sense I suppose,” Ianto admitted, “but you know what this means?”
“You really are what you eat.”