temptress (plural temptresses) 1  An alluring woman who seduces or exploits men. 2  A woman considered sexually attractive by men. Marilyn Monroe, the iconic temptress of the 20th century.
Sarcasm is difficult to understand when crossing any language barrier, but yes it is a popular stereotype that the Germans have little sense of humour. I work with several german clients and they don't put up with anything let's put it that way. Just Google it.
Humor is laughing *with*other people while sarcasm is mostly laughing *at* other people. Intention behind humor is to make one laugh and feel happy or relaxed. Sarcasm mostly aims at making one squirm and feel shameful or stupid. Humor need not depend on sarcasm, but sarcasm can not be effective without humor.