Luke
1:26 And in the sixth month the angel Gabriel was sent from God unto a city of Galilee, named Nazareth,
1:27 To a virgin espoused to a man whose name was Joseph, of the house of David; and the virgin's name was Mary.
1:28 And the angel came in unto her, and said, Hail, thou that art highly favoured, the Lord is with thee: blessed art thou among women.
1:29 And when she saw him, she was troubled at his saying, and cast in her mind what manner of salutation this should be.
1:30 And the angel said unto her, Fear not, Mary: for thou hast found favour with God.
1:31 And, behold, thou shalt conceive in thy womb, and bring forth a son, and shalt call his name JESUS.
1:32 He shall be great, and shall be called the Son of the Highest: and the Lord God shall give unto him the throne of his father David:
1:33 And he shall reign over the house of Jacob for ever; and of his kingdom there shall be no end.
1:34 Then said Mary unto the angel, How shall this be, seeing I know not a man?
1:35 And the angel answered and said unto her, The Holy Ghost shall come upon thee, and the power of the Highest shall overshadow thee: therefore also that holy thing which shall be born of thee shall be called the Son of God.
I don't see God asking Mary anything. It looks to me like the angle was sent to explain what was going to happen.
God promised in the Old Testament that the Saviour/Messiah would come through the house of David. Isaiah 7:14 says "Therefore the Lord himself shall give you a sign: Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel." This is echoed in Matthew 1:23 "Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which being interpreted is, God with us." One has to look, too, at the genealogies of both Joseph and Mary. Mary wasn't picked just because she loved God, she was picked because she was from the house of David, as was Joseph. Joseph's genealogy is given in the very first chapter of the very first book of the New Testament, Matthew 1. Matt. 1:6 "And Jesse begat David the king; and David the king begat Solomon of her that had been the wife of Urias (Bathsheba);" Matt. 1:16 "And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ." Matt. 1: 20 "...Joseph, thou son of David, fear not to take unto thee Mary thy wife; for that which is conceived in her is of the Holy Ghost."
Luke (who didn't get around to Mary's genealogy till the 4th Chapter), Luke 4:23 begins with "And Jesus himself gegan to be about thiry years of age, being (as was supposed) the son of Joseph, which was the son[-in-law] of Heli [Mary's father]." Luke 4:31 gives us this key: "...which was the son of Nathan, which was the son of David."
All this to say that Joseph and Mary were both descendants, (distant cousins) of David the king. II Samuel 6:14 says "And these be the names of those that were born unto [David} in Jerusalem: "Shammoah, and Shobab, and Nathan, and Solomon."
As far as Mary being the perpetual virgin, that doesn't appear in the Scriptures. Luke 2:21-24 reads: "And when eight days were accomplished for the circumcision of the child, his name was called JESUS, which was so named of the angel before he was conceived in the womb. And when the days of her purification according to the laws of Moses were accomplished, they brought him to Jerusalem, to present him to the Lord; (As it is written the in the law of the Lord. Every male that openeth the womb shall be called hold to the Lord;) And to ofer a sacrifice according to that which is said in the law of the Lord. A pair of turtledoves, or two young pigeons." This was done according to Leviticus 12:8 (in fact, read all of Lev. 12, 1-8). The sacrifice of the two turtledoves only appears in Lev. 12:8 and Luke 2:24.
God had promised Abraham, Isaac, Jacob, and David that the Saviour would come through their lines. Everyone thought that the Saviour would come through the line of Solomon but God cut off that passage because evil that Solomon's descendants did. God thinks of everything. In the days of the Roman occupation of Jerusalem and, therefore, under Roman law, if a child were adopted, he inherited the man's lineage in toto. Therefore, when Jesus (son of Mary, descendant of David) was adopted by Joseph (son of Jacob, descendant of David), the line of Solomon was restored and Jesus could rightfully claim the line of David and all of God's promises were kept.
This makes a very interesting chart done in FamilyTree Maker. It is something to behold when printed out.
You are inferring then that Mary was raped by God, because the Gospel according to the Bard says that she had no choice in the matter.
The words you left out are the most important.
Be it done unto to me according to Thy Word.
At that very point Mary became the co-Creator of the Son.
I'd be a little concerned if I were you to be talking about Somebody's mother that way.