Test Subject by Hector Himeros - Nifty

"....."Take off your clothes, Joe. I want you to be naked," Bill said, walking over to the machine to prepare everything.
 Before Joe could protest, Bill quickly added, "Being naked is a must.
 After all, the drug that will be tested on you is an aphrodisiac,
 made to help cocks get erect. How can I test it if I can't observe your cock?" To the doctor's delight,
 the hunky college student finally took off his clothes. Without Joe's knowing it, Bill was eying his body secretly.
 'Damn! This stud is hot. Oh, I love young muscles. He must be a famous jock in his college. Handsome and athletic.
 Shit! I start to get a hard-on,' the doctor thought, trying to hide his lewd erection.
 Fortunately, the laboratory coat he wore could hide the bulge from the view.
....."