Fred's mind battled with itself. She knew how good human blood was, but she also knew that was wrong. She could feel her fangs as though they themselves thirsted for Alicia's warm blood, but she couldn't do that. She was supposed to help humans. That was what her parents would have wanted. "I might have something in my bag," she forced herself to say before she chose instead to simply grab the other girl and feed.
Before she let the girl go retrieve the backpack Fred took hold of Alicia's shirt and playfully pulled her closer to kiss.