'The man grins, then, his cheeks dimpling, and it reminds Billy of the sun—bright and warm and lovely—and Billy thinks that this man has the most amazing smile he's ever seen. "Hi," he says, then, and it almost manages to make Billy smile, too. "I'm Teddy Altman."' Or, a Billy/Teddy Titanic AU.
"you let out a scream that sounds nothing like you, high-pitched and terrible, and you grab desperately for his hand just before he falls." Remus/Tonks