Kieron Pritchard, 40, from Wolverhampton, was charged with causing a child to engage in sexual activity and possession of indecent images, West Mercica Police said.
Mr Pritchard, who worked in Worcestershire, was suspended from duty on 23 April, the force said.
A 47-year-old woman from Bristol also faces three child sex abuse charges.
Police said Mr Pritchard had been remanded in custody to appear at Worcester Crown Court on 29 May.
The woman has been charged with the sexual assault of a child, causing a child to engage in sexual activity and distribution of indecent images.
She has been released on conditional bail to appear at Worcester Crown Court on the same date.
Two people, including a police community support officer, have been charged with child sex offences.