Along with the most frequent, Caroline Vee - who charges £120 per hour - also opened up about the weirdest requests she has received.
She said: “It's a toss up, isn't it, between sucking the dog off and doing sh*t.
“Make your mind up, really, which one you think is the weirdest of those. Making a poo sandwich for somebody and then getting them to smear it all over their face when they're finished.
“I've got one of those booked for next month. That's gonna be fun. Coming up all the way from the Isle of Wight just to eat my poo.”
Caroline clarified that she would never s**g a dog. She also said that she has had clients as young as 20 and as old as 80 year-olds.
