Bella considers this. [I suppose that given sufficient magic making the excess complications of diseases and babies not-a-problem, the only thing that has me worried is that someone else will do their equivalent of calling you a freak, and then I have to share not just my boyfriend but also my pet masochist, and then I have to keep that person happy or run the risk of turning them into my archenemy and not having my advantage. But that could happen without sexy experiments, too, perhaps just as easily considering the timeline with you and me. So it makes more sense to focus on mitigating the possibility that I will wind up sharing you with an archenemy than just naively banning sinister experimentation with magic-detectors who may or may not be cute and expecting that to solve the quandary.]