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While Jacob insists his feelings for Renesmee (Mackenzie Foy) will remain completely platonic until later in her life (as does Twilight author Stephenie Meyer), Bella (and most of the fandom) find their relationship to be unsettling at best.
Jacob was initially in love with Renesmee's mother, Bella; she eventually chose Edward over him, however, and mothered Renesmee—a vampire-human hybrid. As soon as she was born, Jacob imprinted on her, thus freeing him from his heartache over losing Bella.
By imprinting on Renesmee, Jacob has imbued her with protection from other werewolves in his tribe. Prior to taking her on as a romantic partner, Jacob would first act as an older brother to Renesmee until she grew up – which won't take long given her hybrid nature, which makes her age more quickly.
Yes. It's creepy as hell. Jacob is the same age as Renesmee's mother (in reality a year or two younger, but you get the drift). Biologically, he's seventeen to eighteen years older than Renesmee.
So if freezing for a hybrid just means not aging anymore, then Renesmee could be perfectly capable of getting pregnant. The child would be half human, half vampire, and half wolf.
In Twilight, he is fifteen years old, and in New Moon, he phases into a wolf for the first time at the age of sixteen. In Breaking Dawn, he imprints on the hybrid baby named Renesmee Cullen, the daughter of Edward Cullen and Bella Swan.
Seeing as she's half vampire, one would think she would age much slower than humans, since vampires can't age at all. However, poor unloved Jacob shouldn't have to wait eighteen years for his happily ever after, so Renesmee grows abnormally fast, and will magically stop aging once she reaches sexual maturity.
He won't tell her what is wrong. He says he can't see her anymore. If he'd imprinted on Bella in that moment (and it happens the first time you see the person after you've phased), he would have answered all her questions. Pretty much, he would have given her anything in the world she wanted.
As a human, Bella possessed a natural immunity to the mental powers of vampires. After her transformation into a vampire, she develops it into the ability to project a mental shield that protects others from the psychic powers of other vampires. Her Life and Death counterpart is Beau Swan.
When they phase into a wolf for the first time, they stop aging. There are plenty-a-plot-holes here BUT if Jacob maintains a regularly scheduled shape shift, he can essentially stay young forever. This is a good thing because Renesmee will be Jacob's age physically in a mere few years.
Members of the Quileute wolf-pack do age if they do not phase for a long time; Jacob's body has physically grown to the equivalent of a 25-year-old in Breaking Dawn but stops aging after that. Jacob is the largest and strongest of the pack.
Renesmee got married to Jacob and made Lucina her maid of honor. In Have A Purpose, Renesmee reveals that she is pregnant. She gives birth to Evan and Sarah and appointed Lucina as the godmother to her kids. Lucina marries Bryce before Long Live Life making Renesmee her maid of honor.
As it's explained in the novels and in the movies, imprinting is something the Quileute shape-shifters aka werewolves do that basically finds their soulmates. They can't control when it happens or to who, and it can happen at any age. “Imprinting on someone is like when you see her, everything changes.
Edward says Renesmee is his niece, and that he and Bella are adopting her. Charlie, however, figures out the truth when he stares into Renesmee's chocolate brown eyes; his chocolate brown eyes. He agrees, however, to stick to the adoption as the public story to protect them.
While she remains in Forks, Jacob will not age, as werewolves stop ageing when vampires appear, and resume ageing when they leave (hence Jacob's father).
Just before Jacob almost kisses Bella, he says "Kwop kilawtley," which means "stay with me forever" in Quileute.
Bella chose Edward over Jacob because Edward associates more with Bella, is more similar to her, and appears to Bella as a better parent and provider. Edward and Bella are in closer proximity than Jacob and Bella because Edward and Bella go to school together.
Bella gets pregnant after one night of passionate sex with her husband Edward the vampire, sex that leads to the destruction of their idyllic honeymoon suite.
At the end of the book Nahuel, the human-vampire hybrid the Cullens have just met, states that she will probably reach complete physical maturity around seven years after birth, physically appearing to be around sixteen or seventeen years old, at which point she will stop aging and live to an unknown extent.
It is implied that Renesmee's growth will slow down until it ceases at the age of seven, by which she will have the appearance of a young woman. She may be able to live for centuries minimum, if not more.
At the end of Eclipse, she becomes engaged to Edward Cullen, and they marry in Breaking Dawn, one month prior to her 19th birthday. On their honeymoon, she becomes pregnant, and, due to the peculiar nature of her baby, Bella nearly dies giving birth to their daughter, Renesmee.
Taha Aki, the first shape-shifter in the Quileute tribe.
As a result, she not only gains immeasurable strength and good health, but her daughter, Renesmee, is born a vampire-human hybrid. Renesmee is special, because she is not an Immortal Child, or a child that was bitten by a vampire. Instead, Renesmee is born biologically.