Mansoor Miah, of Hilgrove Road, Kilburn, invited the underage teenager to meet him for sex at a hotel in Kent, in November 2013.
The 21-year-old, who works as a sales assistant in Tesco in Brent Cross, also swapped lewd photos with the youngster and pleasured himself in front of the teen via webcam.
Southwark Crown Court heard the child’s mother was alerted after her daughter’s school reported online contact between the pupil and Miah.
Miah retweets several messages from Anjem Choudary including one just three days before his arrest on June 25 last year, which begins: ‘Which Muslim wouldn’t want to live in the Khilafah, ie Islamic ruling system…’
Today in court he admitted attempting to meet a child following sexual grooming.