If the sperm of two or more men were metaphorically put in a blender and prepared for artificial insemination, isn’t it possible to have twins with two dads? Has there ever been a documented case? Further, what would those twins be called? The word “fraternal” implies that both babies would have the same parents.
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Yes. Interestingly the head of the human penis is shaped like it is to pull a previous males leavings out to increase their own chance of fathering potential children.
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