The Cooks, who foster for St Helens Council, said there was a desperate shortage of foster carers in the borough.
Dave said he would encourage anyone thinking of fostering to “absolutely go for it”.
“There are so many children that need fostering,” he said.
“There are so many options you can take, from babies all the way through to teenagers to 18-year-olds.
“If you’re even considering it, pick up the phone and get on to Foster4, external because we desperately need people.”
Dave and Sue said they had “no intention to stopping just yet”.
“We’re still doing it and still enjoying it,” explained Sue.
“Every day is a different day and every day is a nice day,” Dave added.
“You mix the good with the bad. It keeps you going, it gets you up in the morning.”