David and Pauline Williams from Bradninch, denied 46 charges of sexual and physical abuse between 1989 and 2004.
The couple, who used to run the now-closed Victoria Pub in Exeter, became friends Fred and Rose Wests when they lived close to their home in Cromwell Street in Gloucester.
The judge at Exeter Crown Court told the pair to expect lengthy jail terms when they're sentenced next month.
Litter main environmental concern among Plymouth residents
Over 1,000 took part in consultation
Parking fees rise at two Devon attractions
Increase of 10 percent
Appeal to help Torbay's homeless
Bay's most vulnerable people at risk, says MP
Plans to save tens of millions in adult social care
DCC eyeing up external firm
Street hubs planned for Exeter
'They are a sleek and modern answer'
Sex abuse masseur jailed for four years
Ian Nicholls, 64, assaulted clients
