She hisses as teeth scrape her arm, her body twisting her throat out of harm's way. Like a cat, her feet come up to kick and for a moment she regrets that she doesn't have claws unsheathed on them. But her rational mind reminds her that she doesn't want to disembowel Brigid, no matter how freaked out she's acting.

Riley's on the cusp of turning fully herself, though which form is up for grabs. She's trying to keep herself from doing it, not wanting to give the audience they have more of a show than they're already getting, but the pain from the bite is putting her in a defensive state of mind, which is quickly changing to aggressive.