Free sex experiment
Yes, Miss Johnson, this cage of guinea pigs seems to be doing much better than the others. Ahem, that is, group B is doing better than group A! Betty Johnson peered into the cage to see what it was that Dr. Randolph was looking at. To her surprise the pretty young assistant saw that the four guinea pigs who had been recipients of Dr. Adam Randolphs special combination of glandular extractions were furiously fornicating in the most incredible combinations.