It's wrong to have a crush on family members.
It's valentines day for Jake, and his family are all giving each other gifts.
Jake wants to write a valentine's day letter to his sister.
Jake writes a platonic letter to his sister simply wishing her a good day.
Jake writes in the letter that he has a crush on his sister and loves her.
Jake and his sister have a good Valentine's day and are relaxed around each other.
Jack's sister feels nauseous and the two have an argument.