Biology Help

College girl Gigi is rubbish at biology and her teacher is getting a lot of stick from the headmistress because her grades aren't good enough. When he discusses it with her she starts fondling the front of his trousers and begging him for a practical demonstration! He refuses but she unzips his pants anyway and strokes his dick to a throbbing erection. When she puts it in her mouth, he gives in and grabs her pigtails and face fucks her. He then bends her over the chair and pounds her tight pussy hard before pulling out and cumming on her pert tits!