Rachel Black

Rachel Black is the sister of Jacob Black. She is also Rebecca Black's twin sister and the daughter of Sarah and Billy Black. She moved away from her father and brother after the her mother's death. She has black-brown hair, brown eyes, and copper skin. She is a good influence on her boyfriend Paul and likely to be very calm and patient, to counter his aggressive and volatile personality.

Twilight
In Twilight, at the beach Jacob tells Bella that Rachel got a scholarship to Washington State college. Jacob did not tell Bella that his twin sisters did not feel comfortable about living in Forks after the death of their mother, Sarah Black.

Breaking Dawn
Paul imprinted on her in Breaking Dawn when she came home after graduating early from Washington State college, though she is four years older than him. In the beginning of Breaking Dawn, Jacob says that Rachel would kill him if he hurt Paul, though 'kill' is meant metaphorically. It's the kind of thing a sister would say about an annoying little brother. Jacob is annoyed that Paul spends all of his time at the Black's house and says that he has his own home and feels like Paul is taking over his home. Then Jacob punches Paul out of retaliation. Rachel cares a lot for Jacob. This is shown when Billy says to Jacob that Rachel would sleep on the air mattress rather than having him out of the house. It is assumed that she cares a lot for Rebecca as they are twin sisters. Billy loves Rachel a lot as he accepted Paul in his house because he was the reason why Rachel stayed in La Push, and when Jacob asks Billy why Rachel can't go and stay with Paul, Billy replies that he missed her when she was away and wanted her to hang out longer in La Push. Though she is mentioned a few times at the start of book 2 of Breaking Dawn she has no physical role in the series.

Etymology
Rachel means "ewe" in Hebrew. The Black family's name origins seemed to be connected since Rachel was the favorite wife of Jacob in the Old Testament. Rachel was the niece/daughter-in law of Rebecca in the Old Testament, and she was one of the late Sarah's (she was already dead when Jacob married) granddaughter-in-laws.