One relationship ends, another begins. Shortly before he leaves to spend Christmas with his father, Nick’s ex appears on his lawn to announce she’s pregnant. While Sasha ponders her options, 16-year-old Nick relives the rocky course of their relationship. He remembers their encounters in the hall, their rules for dating and their gradual detachment from one another. Martin’s freshman prose, whether depicting the parent-child bond, pressing decisions or sexual encounters, balances the heartwarming and the humorous elements that form the pillars for any relationship. In its focus on Nick’s connections, whether with Sasha, gay best friend Nathan or his father, the tale rises above the typical teen-pregnancy melodrama. Whether encouraging Nathan as he comes out, supporting his parents’ divorce or talking with Sasha, Nick worries about the personal impact of these situations in classic adolescent fashion, simultaneously self-absorbed and self-sacrificing. Authentic and sophisticated, the teen banter appeals to both casual readers and literary enthusiasts. Rich characters and honest interactions set Martin’s debut novel apart, and readers will look forward to whatever gestates next. (Fiction. YA)