"Wha...?" Was Erica's initial reaction. Then she noticed Rose pointed at her hand. "Uhh... There's not much to eat. But, go ahead, I guess." she said, holding out her hand for a moment, but then pulled it back before Rose could react. "But don't you dare bite!"
When Riou said good night to her, she briefly looked at him and said good night also, then turned back to Rose.