Relativity theory exam turned into a sex marathon for a student

The teacher was terribly unhappy with his student, so he set her a condition - either a D or a blowjob and pussy-fucking. He did not think until she decided and ordered her to start hugging and kissing herself. Of course, this was not the end of the story, and the mature man began to undress the poor loser, caressing her young charms at the same time. A couple of minutes later the girl was with his cock in her mouth, and after sucking her off the man bent her over and started to give a good fuck in her smoothly shaved cunt. The girl was terribly ashamed, but she still moaned and continued to fuck the professor. The bitch was so good that it wasn't long before her partner gave her in his mouth again and poured his smelly sperm into it. The girl also managed to have an orgasm, so she wasn't upset at all about getting a grade through the bed.