Stiles has a major crush on Lydia Martin, the most beautiful girl at Beacon Hills School, who is also the best friend of none other than Derek Hale. The most intimidating guy at Beacon Hills. Stiles wants Lydia to notice him and the only way to accomplish that is to enlist help. From who? Derek Hale. The only person who can teach Stiles how to be cool enough for a girl like Lydia.