His family welcomes Karen, an adult exchange student. When the friendly American hears that his relationship has gone stale, she decides foreign-style sex is the cure and gives him a rut-breaking blowjob. She warns him not to ejaculate because he should save it for his girlfriend, but her technique makes him explode anyway. Then she claims she will teach him real sex, rides him wildly and makes him creampie her before draining him again and again.