You should love your sister's babies.
Jake's sister asked him to babysit her kids since she had to go to work.
Jake needs to decide what to tell his sister.
Jake agrees to babysit the kids, because he wants to be responsible.
Jake declines to babysit her kids, because he doesn't want to waste his time.
Jake's sister appreciates him and knows she can count on him.
Jake's sister doesn't think Jake is responsible and trusts him less.