Throughout Rebekah living she has never cooked. She and her family always had people to cook for them and oneday Rebekah wanted to cook for Marcel, but he said no in fear of her burning down the house. So Rebekah decides to learn how to cook. 

Klebekah: Klaus is teaching his little sister use a sword behind their father back after Rebekah had begged him for months.

Caroline teaches Rebekah how to be human, while Rebekah teaches Caroline how to be a real vampire in order to impress their respective men (Marcel & Klaus).