A part of the many sensory plays, this one is for a certain taste (and feel)
Sitophilia is the name for arousal around food.
Food play, is applying food to your own or Play partner(s) body and having them take you in by licking/kissing/eating/biting it off the Body. This allow both the taste sense and the touch to get involved fully into a kink. Particular areas are more fun to eat off, and certain things are more enjoyable to eat.
Combine this with a few of the famous aphrodisiacs, and they certainly won’t be placebo in that case.
Keep in mind if you are thinking of licking dark chocolate with chilies in, that you may end up with some figging play somewhere along the line.
Harm: really there are none here, just dont use foods that either is allergic too, and if you tend to use the person as a plate and dine with knife and fork, this isn’t really what this kink is. You want to look up knife play or objectification here
