ok so the 吸血鬼 are meant to have no blood because they have no 心 right. but bella and edward have sex which doesnt make any sense so how can they do it

No No No. 吸血鬼 are full of blood, of course. I mean, they live off of it (animal 或者 human). They have hearts, but they've stopped beating. And they have sex because they still have human desires. They're just suppressed 由 thirst. Meanwhile, if 你 mean...how is Renesmee produced, the answer is in Breaking Dawn. Every human function is still the same for male vampires, just as humans. Male bodies don't change much..and because Edward was 《冰雪奇缘》 at the age of 17, he had all the right parts to make a baby. Bella was a human..a changing female. Ergo, she had all the "working" parts to produce and carry a baby.

well here is sth that stephanie 说 abou it.. it's too long to post it so here is the link: link

also 你 can check it here: link