Many romances start over dinner, and cooking for someone can be as intimate, or as traumatic, as having sex with them. While almost any kind of food can be sexy, some are more traditional than others. Sweets, such as chocolates, are actual tokens of affection, exchanged on Saint Valentine's day as well as other occassions. In the bedroom, chocolate can be spread on the body and licked off. The same is true of honey or any other spreadable substance.
Whipped cream is another popular food item.
And grapes, fed one at a time, are a staple of B-movies about decadent, imperial Romans. Almost anything edible can be sexy. At least two movies in recent times have depicted sushi as sexy. Placing doughnuts around a man's erect penis and then eating them off can be an act of trust. Be aware that any sugary substance placed into the vagina will vastly increase the chance of a yeast infection.