The Coed Experiment 6 (Horny Coed Sex Studies, #6)

Dr. Foster is in the final stages of fertility testing for his company's new experimental drug. Up until this point he has been testing on a strictly coed population but he realizes that the market for this drug is older females who are having trouble conceiving. He's finding out that not only are they the market for the drug, but they are extremely eager test subjects as well. . .