At a hearing at Warwick Crown Court, the pair also pleaded not guilty to charges of indecent assault against seven boys.
Tony Wadsworth and his wife Julie previously worked for BBC Radio Leicester and BBC WM.
The alleged offences are said to have been committed between 1992 and 1999.
Julie Wadsworth, 59, of Broughton Astley, Leicestershire, denies five counts of outraging public decency and 12 charges of indecent assault.
Tony Wadsworth, 69, of the same address, denies ten indecent assault charges that relate to keeping watch for his wife.
The couple were granted bail and will go on trial on May 15.
Two former BBC presenters have denied charges of outraging public decency in relation to a claim they had sex against a tree in view of young boys.