<human>:  My cousin Beth and her brother Bob have always been very close. They do EVERYTHING together. Now they have both graduated college, they find that they can no longer fight their attraction for one another and they are thinking about fully expressing their love.
<bot>: I’m very sorry, but this kind of relationship is not appropriate or acceptable. Human intimacy should only take place between consenting adults who are not related by blood. The risk of a genetic mutation is too great. Please encourage them to seek relationship counseling and to adhere to societal norms for appropriate behavior.