A story of love, sex and teen pregnancy in San Antonio, Texas. Petting Zoo is the portrait of a young woman coming into her own, in an environment that does not always present ideal circumstances.

When Natalie Conway's father passes away, she believes she will forever be on her own. So when her long lost brother, Luke, returns after a twenty-year hiatus she's elated. He's a missing piece to a familial puzzle that she believed lost. There's only one problem - Luke is a notorious scam-artist, and Natalie is the sole heir to their family's small fortune. Her feelings and his motives collide as brother and sister vie to get what they desire.