Megan Marchant and Destiny James-Keeling were killed in the crash on the M1 in 2014
A mother has denied causing the deaths of two teenage girls, including her daughter, while driving under the influence of drugs.
Anastasia James was charged after a crash on the M1 motorway near Shawell, Leicestershire, in January last year.
Destiny James-Keeling, 14, and Megan Marchant, 18, were passengers in her car and died from their injuries.
Ms James, 37, pleaded not guilty to two charges of causing death by careless driving while unfit through drugs.
The third passenger in the car on 4 January, 2014 was Ms James's teenage son, and boyfriend of Miss Marchant, who suffered minor injuries.
Ms James, of Ravenstone, Leicestershire, remains on bail and will next appear at Leicester Crown Court for trial on 24 August.
