Friendship, Girls & Women, Being a Teen 

As their lives take them in different directions, Lena, Tibby, Carmen, and Bridget discover many more things about themselves and the importance of their relationship with each other. The fourth book in the bestselling young-adult series, Sisterhood of the Traveling Pants, finds the girls finished with their freshman year of college and experiencing a bevy of quandaries involving sex, relationships, self-esteem, and growing up. Lena is finally getting over Kostos when she meets the wildly talented Leo in her painting class, while Bee's archeological dig in Turkey involves a very appealing professor, who also happens to be married. Carmen's depression isn't helped by her new friend, Julia, and Tibby's decision to sleep with Brian brings on consequences she never dreamed of. Though the magical pants take a backseat in this stirring drama, they ultimately bring the girls together. - from Amzon