Planning a scene with a lady who is keen to be gunged in kids' canned pasta, specifically Alpha-getti.

I know it's likely pretty similar to what you UK folks call "hoops" and we call "spaghetti-Os". We're keen on having the whole alphabet to be able to spell out some naughty messages on her boobs.

Anyone here have any tips with this substance? Do I have to worry about it staining skin if we're in it for too long?