Dr. Spankencock's Sexperiments

Johnny wakes up in a irate scientist's lab, with no clue how he got there or why. What he does know is that he's abruptly got a phat new knob, and it gets fatter and stiffer than ever. To total her sexperiment, milf scientist Cherie has to produce sure it works. She deep throats his modern dick, and then he nails her honeypot until she can't trudge straight.