A to Z Blog Challenge -- B is for Blood Donor

Welcome to Day 2 of this year's A to Z Blog Challenge.

As a vampire author, I've spent a great deal of time thinking about blood.

For my vampire characters, blood takes on a whole new significance. Certainly, all living creatures need blood in order to operate our biomachines. Yet unless we've sprung a leak, blood doesn't get our attention in quite the same way as the other two driving forces -- hunger for food, and our sexual drive.

Of course, for a vampire, blood takes the place of both f...