The Coed Experiment 4 - Horny Coed Sex Studies, #4

Dr. Foster has put been testing his company's drug on male and female libido and has had tremendous results. He thinks the drug has even bigger potential for fertility testing though, he just needs a live test. He already has one male who has seen significant size increases from taking the drug, if he can just pair him with one or two unsuspecting female test subjects, he should be able to find out.
And he has just the girl in mind...