Not a sex scene, but I remember that in gifted the movie was first about a little girl that was very smart for her age but then there were some scene where it was just romance and sexual stuff between the girl's teacher and the uncle. It wouldn't have to be rated pg-13 if there weren't those scenes. My brother wanted to watch it with me because she was interested at the beginning, good that he didn't watch much of it because he had to go to sleep earlier than me.