My Sister the Vampire 3. Revamped

The secret is out - cheerleader Olivia and vampire Ivy are twins! Now that Ivy and Olivia have told their friends that they're twins, they have to come clean to their adoptive parents. But Ivy's dad doesn't even want to meet Olivia! When the vampire officials realise Olivia knows the truth about vampires, they demand that she pass three tests to prove she can be trusted. But these aren't any old tests - they will really get the blood pumping. Yikes!