Two London teenagers were forced off bus from Brixton and then made to fight, steal from an Elephant and Castle shop, before one was coerced into performing a sex act on the other.
The two young teenagers were approached by an unidentified man after sitting on the top deck of a London bus departing from Brixton at around 7.55pm on 11 February.
After intimating to the pair he possessed a knife, the man forced both from the vehicle near Elephant and Castle and led them to a park in Newington Butts, where he forced them to fight each other and steal from a nearby shop.
The teenagers were taken to a stairwell of a block of flats in Walworth where the man forced one of the boys to perform a sex act on the other.
The unidentified suspect then walked away from the flats, but it is not clear where he was heading.
London Metropolitan Police are appealing for information surrounding this “most unusual crime and distressing crime,” releasing a CCTV still of a man they would like to speak to in connection with the attack.