The seventh wheel of the seven demigods of the newest Prophecy in the series The Heroes of Olympus by Rick Riordan. He's described looking like an elf, but it doesn't stop the truck loads of adolescents who want to hop on the mcshizzle dragon and put a whole new meaning to sex on fire. Leo is fire user son of Hephaestus, who can literally shoot fire from his hands how nifty.
Leo Valdez: Kiss me , you fool!
fangirls: No please fuck me.
Jason Grace: *jacks off to leo*
Piper Mclean: im crying
Frank Zhang: Who the fuck do you think you are