Sex & Chocolate
(NSFW-Explicit Material Warning)
https://funlovegoodsex.wordpress.com/2015/05/07/the-chemistry-of-sex-and-chocolate/
https://www.dolcefederica.com/product-page/kama-sutra-chocolates
https://www.yourtango.com/2013181036/food-foreplay-101-7-tips-using-food-bedroom
https://relationships.onehowto.com/article/how-to-use-chocolate-in-bed-9023.html
A free download of the Kama Sutra is available via Project Gutenberg.
https://www.gutenberg.org/ebooks/27827