The Last Olympian (Percy Jackson and the Olympians, #5)

by Rick Riordan

Before I could lose my courage, I said, “Don’t I get a kiss for luck? It’s kind of a tradition, right?” I figured she would punch me. Instead, she drew her knife and stared at the army marching toward us. “Come back alive, Seaweed Brain. Then we’ll see.”

He tried for a smile. “Thanks, Percy. I hope…I hope you know I’m really proud to be your friend.” I patted his arm. “Luke was right about one thing, G-man. You’re the bravest satyr I ever met.”

“Percy Jackson,” Hermes said, “you might just teach us a thing or two.”

And it was pretty much the best underwater kiss of all time.