Reborn as the Red Dragon's Wife

My sister and I transmigrated into a savage beastman world where females were terrifyingly scarce. For the sake of reproduction, the Grand Druid allowed us to take our pick of mates first. Whoever gave birth to a child first, her husband would be crowned the Beast King. My sister, Chloe, was power-hungry. She immediately claimed Lucius, the noble and devastatingly handsome Merfolk Prince. I chose Bjorn, a werewolf guard who seemed honest and loyal. Chloe mated with Lucius, but she gave birth to two deformed half-merfolk pups, making her the laughingstock of the horde. Lucius was sadistic by nature and beat her constantly, while Bjorn treated me with the utmost care. After I gave birth to our first child, he successfully ascended to the Beast King's throne and crowned me as his supreme Queen, revered by all beasts. Chloe went mad with jealousy. At my Queen's coronation, she drove a poisoned dagger straight through my heart. When I opened my eyes again, I was back on the day we chose our mates. Chloe rushed forward and latched onto Bjorn's arm. "Elena, this time, the Queen's throne is mine." I instantly realized that she had been reborn, too. I looked toward the small, reddish-brown wyvern huddled in the corner. "I choose him."