World's biggest idiot xD

OK, but…waitamoment…If she's gone through the portal inside Sunny to remain in pone form at Canterlot High, and then goes back through the mirror normally, would be become human in Equestria? That would sure freak everypony out! :PAnd this would mean that she has to return through the mirror to Equestria inside Sunny's tummy again, right? xD