Why are certain sweet foods sticky if you get them on your skin?

a few hypotheticals to set the mood of this question: i pour grape juice on myself. now i am sticky. why? i cover my hands in vanilla ice cream, and now my hands are all sticky. why? i am NOT saying that i would ever do either of these things! i just want to know why certain sweet foods (sometimes food in general)... show more a few hypotheticals to set the mood of this question:
i pour grape juice on myself. now i am sticky. why?
i cover my hands in vanilla ice cream, and now my hands are all sticky. why?

i am NOT saying that i would ever do either of these things! i just want to know why certain sweet foods (sometimes food in general) gets all sticky! and if you're thinking of going "well thats because the [x] is sticky!" WHAT MAKES *THAT* STICKY?????? thank you for your time
5 answers 5