There are a lot of "sweet" lubes, creams, and such out there that have no sugar in them...some of them actually taste ok, too. The main problem with using sugar based products is if she gets them in her vagina, which can definitely happen when using them during play, because it can lead to a yeast infection. Chocolate syrup, whipped cream is great for other parts of the body (ok, I'm cliche, sue me), but I try to avoid the genital area just for personal comfort reasons