Stepmother gives me a passing grade by giving me a blowjob and taking me doggystyle

After a grueling study session, I confronted my stepmom about my math test. She assured me that she could help me ace it, but not in the way I expected. She suggested a different kind of study session, one that involved her expert skills in pleasuring me with her mouth. I was taken aback but eager to try. She took me in her mouth, making me feel like the smartest boy in class. Then, she had me bend over, and with her expert hands, she teased my ass before taking me doggystyle. The ride was wild, and she showed no mercy, pounding me relentlessly. But I was loving every second of it. Then, she mounted me cowgirl style, bouncing on me as if she was riding a mechanical bull. The climax came when she let me take her in my mouth, and then she invited me to cum all over her big, round ass. It was the best study break ever.