Little & Lion by Brandy Colbert

• Suzette ("Little") and her step-brother Lionel ("Lion") have always had a close relationship, but this changes when Suzette is sent away to boarding school after Lionel is diagnosed with bipolar disorder.
• Now home for summer, Suzette hopes to get past the awkwardness and rekindle their closeness, but this proves difficult when her brother starts to spiral out of control and asks Suzette to keep a dangerous secret.
• To further complicate matters, Suzette and Lionel appear to be falling for the same girl -- and wait! -- Suzette also has feelings for her long-time friend, Emil (which is a little confusing for her).
• Suzette wants to be a loyal sister and regain Lionel's trust, but she has to decide if doing what's best for him is worth the possibility of damaging their relationship forever.

Grades 9-12

I liked the diversity of characters in this story, the blended family, and the LA setting.  I especially appreciated the way in which this books deals honestly and realistically with the topics of mental health, sexuality, and family.