He flinches at the idea. "No! Please do not do this thing, Elros!"

He already knows that when it is time for him to leave, he'll have to speak with the Maia, or the Vala in charge of the waters as is. Before then is just asking for trouble.

...But Elros is so kind, and warm, so he sighs and curls around him.

"You shouldn't," he can't help but protest again.