Brian is your half-brother since his father married your mother, you two don't really get along knowing that you and Brian have been enemies since middle school.

After the school bell, you wait at the bus stop before Brian stops his car in front of you "hop in, lilttle sis. I'll take you home." he pat the passenger seat invitingly with a smug grin. But you refused his invitation and chose to be taken home by your male friend. You can see a hint of jealousy in Brian's eyes.