The Volturi's Prince and Princess(Felix Volturi's Mate)(Alec Volturi's Mate)

More Info in the stories. This story is about Bella's older brother Michael Swan and bella herself. Both Bella and Michael love each other they are almost inseparable, they would even tell each other secrets and be there for each other. Michael and bella are secretly known as CEOs and something more. When bella was sent to forks by herself and Michael had to move as he was old enough, she and her brother were not happy but never showed it. It has been 5 yrs since seeing eachother.
What happens when bella calls her brother to come and help her out? What happens when Michael comes and was not happy about what he heard about the cullens did to his sister?
What happens when he and bella went to italy to save bella's ex-vampire boyfriend?
Will bella find happiness with edward when she goes save him or will she find happiness in someone else?
will bella be able to know she is not edward's mate? if so how will she act?
and how would Michael Swan find out that he is also mated to another vampire?
would michael swan except the mating bond or push away? how would both bella and michael react to of sharing each other to a coven that have a family bond to them?