Dave Wallace, intervention coordinator, introduced the Duke and Duchess to former clients, including Ellie-Mae O’Sullivan, 17, who was there with her 18-month-old son Noah.
Ellie-Mae told the couple how she had been affected by Child Sexual Exploitation but with support from Base25’s sexual exploitation coordinator Jennie Watton, had been able to understand what had happened to her and receive counselling.
"It was having someone to talk to more than anything," she told William and Kate. "It helped me open up and realise what had happened to me. I wouldn't be here now if it wasn’t for them."
The Duke smiled as little Noah wriggled around in her arms, saying: "He wants to go and play!"
“Did you start coming before your son was born?"asked the Duchess. "It's really good to have that support."
They also heard from Courtney Morriarte, 17, who was there with her lively three-year-old son Kyron.
She told the royals she had been referred to Jenny through her school, adding: "She used to come into school to see me and the sessions really helped me."
The little boy was keen to go and play in an upstairs room and William waved his hands animatedly back at him as he was finally allowed to go up.
Former client Anthony Crook told the couple he had gained confidence by attending the daily drop-in sessions at Base25.
"I didn’t feel comfortable speaking to anybody before I came here," he said. "But I made lifelong friends here. I wouldn't have been able to talk to you a few years ago, I wouldn't have been able to cope."