Jasmine Black

In another world, Jacob was the only youngest child. In this world, he's a twin, and not the youngest.

In another world, he was a shifter. A wolf shifter, the first to shift in a long time in his family. In this world, his twin was the first one to shift.

In another world, he shifted when the Cullens had left. In this world, his sister had shifted much earlier, when the Cullens were still present.

His younger sister's name? Jasmine Black.