[Eric smirks when Helix jumps. Clearly the asshole enjoys other people's discomfort.]
Perform what?
[Oh he can hear it and he's had breakfast, but a glass of synthetic blood is hardly a substitute for rich, warm, sweet blood. Helix is safe enough in that regard though. If Eric can withstand a plethora of fairy blood without losing control, he can resist the lure of one blue boy's blood.]