Yuki held Lulu about to scald her when she saw Bill poking Loki who seemed to getting frustrated. Right before he blew his top Yuki walked over and petting his head before turning to Bill
"I don't mean to be rude but Loki doesn't like you poking him like that but if you wanna be friends Loki likes to battle so maybe later you to can battle? make friends and maybe even rivals until then maybe you can play with Lulu, she seems to like you."
She says pointing to her where she was playing with and hugging his tail cooing.