Loki goes over to Thor, "Mind your tongue and leave my business to me you child." He speaks harshly but then rubs Thors blonde hair into his face playfully.
"No you don't." his eyes are bright green hypnotising the child.
(She doesn't have to be for him using magic on her sister he isnt that good yet he accidentally made her forget the last five seconds, he meant to make her not want to see the paintings..)