kaitlyn granado , 24 , was first arrested on march 19 for having sex with 15-year-old student .
she claims she had sex with pupil , 15 , in her car on consecutive nights in january .
texas math teacher has been accused of having sex with an underage pupil from a texas high school a month after she was arrested for letting another teenage touch her breasts .
she was arrested last month when she admitted kissing another boy , also 15 , and lettin him touch her breasts .