Over time, Richard started sending more money in the hope of more feet photos.
While the young woman initially thought the request was "strange", she warmed up to the idea, saying "it's only feet".
Her sugar daddy even encouraged Williams to treat her friends with his credit card.
"Just recently he's sent me credit cards with big amounts on them like £2500 and told me to 'drain' the lot of them and treat me and my friends.
"There was so much stuff, I had to label it all up in my room with everyone's name on it so I didn't get confused."
Williams' arrangement recently went viral after her friend Sarah Connolly tweeted about the bumper Missguided order.
"Amy's 'sugar dad' just treated the whole girls chat to clothes," the tweet said.