Isaac has a secret. While he's just a regular eighteen year old boy by day, when he has some free time he becomes Belinda, feeling much prettier as a girl. When he meets Nathaniel he worries that the much older man will reject him when he finds out the truth. Luckily for Belinda, Nathaniel likes his women complicated. Crossing the Line is a wonderful, erotic coming of age story, where Isaac learns that both of his identities can love, and be loved, by the same man.