XL
(Book)

Will Daughtry is just shy of five feet, and is resigned, bitterly, to being tiny forever. His only comfort is his best friend and stepbrother, Drew (6'3"), and their pal Monica (5'10"), the girl he's pined for since fifth grade. With them, he feels whole; everyone else sees him as a half man. But when Will stumbles onto Drew and Monica kissing, he realizes he's on his own. That's when he starts to grow. Astonishingly fast. New possibilities open up: sports come naturally, girls are throwing themselves his way. But as his growth spurt shows no signs of slowing, Will has to figure out what to do with himself-- and all of this new "himself" he never expected to have. -- adapted from jacket