(Echo Creek Academy, Principal Skeeves' office)
The frustrated king and queen of Mewni spoke with Pincipal Skeeves on his mirror.
"So we give you riches, and you waste them on ice cream?!" Moon complained.
The principal could only shrug with a sheepish smile.
"...Did you save some for us?" River asked in anticipation.
The principal took out a pair of ice creams and threw them through the mirror. They went through, the royals caught them and ate them as they concluded:
"This stays between us."