What if "Dear Abby" was a Man? 3

Dear Abner:

My husband wants to experience menage-a-trois with me and my sister. This seems wrong; what should I do? * "Monogamous." Dear Mono: Your husband is clearly devoted to you. He cannot get enough of you, so he goes for the next best thing: your sister. Far from being an issue, this will bring all of the family together. Why not get some cousins involved? If you are still apprehensive, then let him go with your relatives, buy him a Rolex watch and cook him a nice meal.