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The wt angels are spirit men, totally male, except for the above named missing bits. As such, it would be reasonable that the rest of their parts would be the equivalent to the human parts, such as heart lungs, brain, fingers, etc. Any misuse of the above named parts would turn them into demons. For instancem satan used his brain too much, and turned into a super demon called devil. Some other demons used parts that they did not have, officially, materialising them, and thus turned into demons. Only the wt god jehovah, the alpha spirit man is allowed to have ALL of the human male equivalent parts, cuz he would never misuse it. You may have read in the nwt of jehover's rod of strength, and of course his getting mary preganant.
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