The best example I can think of mediated desire is advertisement.  Corporate marketing is an expert in tapping in to the public’s minds.  One of the ways they do this is by implementing sensual, sexual over tones into the advertisement, even when the product has nothing to do with sensuality, or sex. 

Stewart talks about desire in this area of the text because desire is linked to the “grotesque body”.  Stewart talks about on page 105, “an exchange of sexuality can be used to effect the grotesque”.