I remember seeing some Japanese porn that had to do with sloppy eating, apparently it's VERY TABOO if you're a female over there to be a messy eater, chew with your mouth open etc, drives the guys crazy ;)
in fact the women often put their hand over their mouth when they laugh so as not to show their teeth or open mouth. Just goes to show you that people always want whatever it is you're trying to deny them. In Victorian England there were prolly plenty of guys squeezing one out thinking of some dame's ankles showing under her dress
