A would-be teenage terrorist fantasised about killing US President Barack Obama with her Islamic State fiance, a court has heard.
Safaa Boular was 17 when she and her older sister allegedly plotted an attack on London in coded conversations about an Alice In Wonderland-themed Mad Hatter's tea party.
She allegedly settled on a grenade and gun ambush at the British Museum after IS fighter Naweed Hussain was killed in Syria before she could join him.
Last April, she passed the baton to her older sister, Rizlaine, 21, after she was charged with planning to travel to IS territory for terrorism, the Old Bailey was told.
Prosecutor Duncan Atkinson QC has told jurors that Boular chatted with Hussain on social media for three months before they declared their love for each other.
The barrister has claimed she to wanted to marry Hussain and then don a suicide belt together.
On August 16 2016, the pair exchanged pictures of a Kalashnikov rifle, grenades and a handgun during communications, jurors heard.
Hussain, who was in his 30s, bragged about "our klash", saying it was "one of a kind".
Boular sent him a picture of Mr Obama in reply and asked "So what, is it us Vs..."
Hussain replied "Yeah" and allegedly called the American politician a "filthy kalb" (Arabic for dog).
Asked how she would kill him "if u had da choice", Boular sent an image of an explosion and said "shake my hand with Mr President", the court heard.
She allegedly told him she wanted to achieve paradise in death "so bad".
Hussain said they would both "go forth one day" or she would fulfil her role as a fighter and "wife" and "raise lions".
Rizlaine Boular, of Clerkenwell, central London, has already admitted planning an attack with the help and support of their mother, Mina Dich, 43, the jury was told.
But Safaa Boular, now 18, who lived at home with her mother in Vauxhall, south-west London, has denied two counts of preparing acts of terrorism.
Her lawyer, Joel Bennathan QC, has told jurors that she was just a child when Hussain "groomed" her, and her family had encouraged and celebrated it.