Drearyweather, your phantasy is amazing. It is but not good to arrange the whole life round such assumptions. But your phantasy is great you should work in that industry.
You wrote above something like that the angels "were not made to have sex".
As Jehovah certainly had known what he had created and for what he had angels created, then it is impossilbe that they would have been able to make themselves their human bodies how they wanted so to speak in a do-it-yourself construction including the suitable sexual organs. Everything without allowance from above without divine construction plan?
You certainly see that Jehovah God would have made a big fool of himself, if he had created them so that they could create for themselves a human body.
Was he not, he, Jehovah alone, responsible for any creation of any kind? Did he not make the basic plan for angels? Jehovah certainly did not include in the basic plan an angelic evolution modul so that they could change or develop themselves and become another kind or overleap the limit of kind.
Either Jehovah wanted that they became human and had sexual experiences or he did it not want. Either jehovah wanted that they got G-I-A-N-T children, or he wanted it not. Imagine Jehovah making the construction plan for the Giant babies that would ruin the earth. Otherwise the Angels could not work out such an evolutionary kind jump plan because they were not able to do, they were not created to create or to let sprout evolutionary organs.
How would the holy angels do something so silly or try it at all knowing that he alone was the creator or without asking Jehovah.
Angel cannot make themselves bodies only J.G. would be able to do. It is most likely an old legend.