Hailee gets separated from her baby sister at the age of 5 because their parents argue too much and they couldn't take it anymore. Hailee stayed with her dad and her baby sister was taken by her mom. Later on in life, she met Shawn Mendes. They became really close friends and Shawn starts to have After Shawn discovered a girl on YouNow, she became famous. Shawn introduced the girl, Rachel, to Hailee. When Hailee found out that Rachel was her sister, something unexpectedly happened. READ THE STORY TO FIND OUT! Will Shawn tell Hailee that he has feelings for her? Will Hailee tell Rachel that they are siblings? PRETEND THAT SHAWN AND HAILEE ARE BOTH 19!!!!!!