To comfort me after failing my exams, I asked my tutor, Karen, for a chance... and she allowed me to insert it for just 10 seconds! And the moment I inserted it, my dick and pussy were in perfect sync and I came at the same time! Even though the teacher didn't know it, she couldn't stop moving her hips and straddled me, cumming inside me in cowgirl position! We were so into each other that we fucked every chance we got! The neat and tidy teacher's crab-like thrusts were so intense that I ejaculated continuously! Just the two of us had an extremely intense sex lesson! This is making me anxious about next year's exams...