If looks could kill Sybil would have murdered Loki about 7 times over by now. In her mind she had a right to be angry, as one of the things she had learned in her training was that where there was magic, there would be people trying to abuse it. In that aspect Loki was just about as bad as it got. Even though she knew the boy she was glaring at was not the real Loki, likely some byproduct of a spell or experiment, she couldn't keep the hatred from her her face. Loki had given her father a lot of grief over the years, not in face to face confrontations but in the immense amount of damage control and clean up her father had to do. Sybil looked away to avoid being caught in such obvious disgust of him and bit her lip. She had to wonder if this was part of the whole 'learning how to socialize' and 'making friends' process or if this was just going to be an exercise in futility.