Snow White's Heroines by Rainbow Press

Even though Snow is old enough for adult activities, she isn't old enough to rule.
At her coming of age party, Snow and her history teacher discover there is no longer a barrier to sweaty nights back at the princesses' apartments. But Snow's pleasure is short-lived, and a leisure trip before her coronation ends in an aborted assassination attempt. Warned not to return to her kingdom, Snow runs directly into the arms of a Red Hooded woman.
After a passionate tryst in the woods, the two continue on their path and meet with seven loyal dwarf subjects who are determined to help their true Queen.
Will Snow regain her throne? And will the teacher she left behind be willing to unite with Snow's Little Red Riding Hood?