Fangtastic! (My Sister the Vampire)

Olivia is a vegetarian. Ivy is a vampire. And they're twins?!? Ever since Olivia discovered that her long-lost twin sister, Ivy, is a vampire, she's been soaking up everything Ivy will tell her about Franklin Grove's vampire community. It's all top secret, and Olivia's sworn that she'll never tell another soul. But now, nosy tabloid reporter Serena Star is sniffing around like a bloodhound. As she gets closer and closer to the truth, it's up to Ivy and Olivia to throw her off the scent.