While the age of consent is 17, there are restrictions about the age of the other party - such as that they have to be within three years of a minor's age. It's established that Claire is in her early 30s, which puts her outside of that age. Furthermore, The Texas Department of Public Safety, Texas's law enforcement agency, considers the age of consent as 18. Texas also has additional laws that make it illegal for a teacher and student to have relations.