She believes there has been a "normalisation of quite extreme behaviours", with many simply viewing this as "[par for] the course". Ms Speed says many male sex workers do not take sexual assaults - including rape - seriously.
According to its co-director Fergal McCullough, sex workers in this area are the most vulnerable - some are homeless, nearly all have very little money. In England, Wales and Scotland, sex work is illegal when someone is forced to sell themselves against their will, solicits for work on the street or keeps a brothel.
More on this story. For Daniel, it is a safer way of offering services - he also refuses to participate in unsafe sex and "chem sex", which involves the use of drugs.
With no money, and not knowing anyone in the city, he became homeless. Within a week, he had turned to sex work.
He fled his hometown when his family disowned him for being gay. But many others put themselves at risk of harm.
He says he was also raped at a hotel, after his drink was spiked. Hayley Speed, who works for The Men's Room, one of only a handful of charities across the UK that supports these men, trying to keep them safe, says: "When we speak to sex workers about when they first got involved in sex work, the phrase we hear most often is, 'I started when I was 14 or 15,'" she says.
Protitute of these men see their work as a positive choice, but for the most vulnerable it can be little more than a means to survive. At the time of his alleged rape, he did not to go to the police. Tyler now has a traditional job and does sex work only occasionally, advertising online.
What he is doing is legal. After dropping out of university a decade ago, he turned to sex work and has been doing it full time ever since.
Sometimes clients who did not want to pay would lock him in their car, he says, and not let him out until he gave them their money back. It is early afternoon in east London, and Daniel has just finished his first appointment of the day.