ourlastmemory wrote:in answer to the idea of the venomous sperm, i don't think the venom would have necessarily had to mix with the sperm - edward's sperm would merely have been...stored since his transformation, presumably at just about the right temperature so it couldn't die.
I would agree that that is what Stephenie is going by. However, to store sperm for that length of time, Edward would either have to be warm enough to store sperm like a normal person, or be much colder than he possibly can be.
I have a farm and I breed quality show livestock--part of that can involve AI, or artificial insemination. However, sperm has to be stored in a special case specifically for that purpose; it's pretty expensive, so not all livestock breeders can afford it. Why? Because the tanks involve liquid nitrogen to freeze the sperm. Also "to allow the sperm to remain viable during the time before and after it is frozen, the semen is mixed with a solution containing glycerol or other cryoprotectants."
I somehow doubt that Edward is as cold as liquid nitrogen, or that venom would protect it in the same way as said cryoprotectants.