If Loki were a kinder person, this would be the time when he would tell this mortal about the customs of an Asgardian feast so he wouldn't embarrass the people that he is supposedly representing while he's here. Asgard's feasts are mostly drunken behaviour and food, but there are some rules to be obeyed, bent, or broken.

But he is not a kinder person, and so his smile just increases.

As he rises from the now almost fully iced over bath, his body ripples and he seems to fold into himself to become a python longer than anything found on earth. Fully fifty feet long and almost as thick as Tony's entire body, with fangs that seem incongruous in a type of snake not usually known for biting.

"Go to the feast, Tony Stark," a voice echoes in his head. "I have other amusements to follow."