A smitten prison officer engaged in phone sex with an inmate and then sent 900 messages to his mother to sustain the affair.

Megann Gibson initiated a forbidden relationship with the prisoner while employed at HM Prison Wealstun in West Yorkshire.

The 26-year-old granted the unidentified inmate access to off-limits areas within the category C facility and visited him at his resettlement housing.

Gibson also sent his mum more than 900 messages in an apparent bid to keep in touch with the inmate.

The rookie officer is now facing jail after pleading guilty to misconduct in a public office.

Gibson, who also admitted possession of cannabis, will be sentenced in August.

The judge warned her: “You may well be serving a prison sentence.”

The charge states that she engaged in an “inappropriate relationship” with the serving prisoner.

This includes having “sexual communications via telephone”.

Wealstun houses around 900 prisoners and offers training courses to help with rehabilitation.

Gibson is the latest prison officer to become romantically entangled with an inmate.

Last month, Morgan Farr Varney was locked up after she was caught sneaking into a cupboard with an inmate she fell in love with.

Katie Evans, 26, was jailed earlier this year after performing a sex act with a convicted burglar and referring to herself as his “queen”.

While in February, Toni Cole admitted sending more than 4,000 sexual messages to an inmate.