Their Bundle Of Joy

Little y/n was Bella's and Edward's second child, y/n is a human while her older sister nessie is a hybrid vampire. In the womb nessie took all the food causing little y/n to become a human and grow slower. When irina spots nessie and baby y/n catching snowflakes she reports the crime to the volturi not knowing her actions will later cause her life. Months later the volturi face off only to find two un immortal children and that little y/n is mated to felix and demetri, the executioner, the strongest vampire in the world and the world's best tracker. Aro determines if he should start a war or save the fight for another time, he then suggest that his two guards grow closer to little y/n and watch her grow.