Smell of His Sweat Drove This stepmommy Wild

Biochemistry is a fascinating thing. In it, unlike classical inorganic chemistry, by mixing a couple of known components, we always run the risk of ending up with something totally unpredictable. Take, for example, regular human sweat. In fact, it is a simple aqueous solution of salts and some organic substances. Which ones? Fuck if I know. The only important thing is that it can act like a real aphrodisiac. Which, as a matter of fact, is EXACTLY what happened to the heroine of this story, who missed a strong young penis