Her biology instructor was happy to explain in detail why her asshole was the preferred hole for fucking. While he slammed his spit-lubed cock up her aching ass over and over, he explained that it was far more pleasurable for the men to fuck her ass, reduced the chances of unwanted pregnancy, and that the pain she was experiencing also added to the pleasure for the men using her ass. She agreed to never ask a man to fuck her pussy again, after all the orgasms from being pounded in the ass were the biggest she’d ever had.