> One of her jokes read: "Do you know why the German girls of the armed forces are in the Netherlands? As a mattress for the soldiers."
> Another one: "A man comes home at night and notices that another man shared the bed with his wife that evening. He searches the whole house, and finally also looks in the bedroom closet. There is a totally naked man, and when that one man asked what the other was doing there, the man in the closet answered: 'You can believe it or not but I am waiting for the tram.' "
> A third joke: "A man had a very ugly wife and he did not want a relationship with her. One evening, he came home and he saw his friend lying in bed with his wife and the man said: 'He does and I have to!!!!' "
Finally, Anne Frank related this joke: "A man and a woman had a relationship, and after a few months the woman's belly was getting disturbingly big. Then, the man called a doctor who said: 'It's just air, Mrs., just air!!!" The man replied: 'I am not pumping air, am I?' "
> On sex, Anne Frank writes about how a young woman will start getting her period when she is about 14, "which is the sign that she is ready to get into a relationship with a man, but of course one does not do that before one is married."
> She goes with a candid description of sexual intercourse and contraception, before writing about prostitution: "All men, when they are normal, go with women, on the street such women talk to them and then they go together. In Paris, there are big houses for that. Dad has been there."
It's not even funny.
What kind of pen was used?