He also refers to them as "young," and as to being a part of the slave market:

In his 2005 book The Bad Life, he wrote: "I got into the habit of paying for boys," saying his attraction to young male prostitutes was not dimmed despite knowing "the sordid details of this traffic".

"All these rituals of the market for youths, the slave market excited me enormously... the abundance of very attractive and immediately available young boys put me in a state of desire."

So even if he did make sure each and every one was above the legal age of consent...