OR he has to raise the heir cause she seems to busy for thatI don't really see how that would be losing anything. Repugnant as she is, she's still very well a Yonkou, so I don't really think she would be using logic along the lines of "if you nail me, your dignity will be lost". Though maybe she devours her partners after copulation, you know like a Black Widow spider and to be honest that possibility doesn't sound that unlikely ._.