In every case, you have to refer to the word meaning something else entirely. I don't know why you fight so hard to avoid acknowledging that there is no reason whatsoever that Mary and Joseph could not have had a satisfying sex life with multiple children.
Actually, I am not fighting at all. I am merely presenting the original language and the original traditions of early Christians and why the Catholic Church did not say to the Protestants fifteen hundred years later, "Hey! You're right! the early Christians had it all wrong! Tell us, what else did they have wrong, because we want to be right, too."
hadit, you want to follow other possibilities, and you should feel free to do that. After all, some have been following these possibilities for five hundred years now. But some of us choose to follow the first possibility, but not blindly. We go back research/understand the original languages of the Bible. We study what else the Bible mentions about the children of Mary and Clopas, who many decided had to have been the children of Mary and Joseph--Jesus' blood siblings, not his cousins or other close relatives. We look outside the Bible for information on these children. And, we also give attention to what Mary herself said two-hundred years ago at Lourdes. Then we have Jesus presenting his mother to John as his mother; to his mother, he presented John as her son.
I understand your "possibilities", I do. I am not fighting to change your own conclusions based on what Paul said about all have sinned. I"m merely pointing out what another author--and someone close to Paul--wrote about Mary. Ding has presented purity as a reason God freed Mary from Original Sin. I've presented how, when Paul called Jesus (a man without sin) the new Adam, along those lines, some began thinking of Mary (a woman without sin) as the new Eve. In the Fall both man and woman sinned, but in the redemption God saw to it only a man was without sin...or, was there a woman without sin as well? What would be God's most likely course of action to balance the fall of mankind? Leave the woman hanging? Think of the times in John's Gospel, Jesus called Mary 'woman'. Read how Eve was described: Woman.
I've weighed all of this and for myself decided upon the possibility the early Christians voiced, the possibility that was followed by all Christians for fifteen hundred years, when another possibility was given voice. You've decided on this second possibility.