eat in zentai?

what are they doing? these three people are all wearing the full body suits , which also called zentai or morphsuit. this kind of clothing will cover your whole body from head to toe, including your eyes and mouth. but you can see that they are eatting in zentai, unbelievable, right?
i know that the material of these clothing is lycra which is strechable, and you can drink in these lycra full body suits, but eat? i don't think it is ok to eat in zentai. maybe they are just having fun in zentai, and taking some cool pictures.