It just keeps on getting messier for disgraced former American Idol finalist Jessica Sierra – and now it’s emerged that the jailed singer is pregnant.

Jess is currently in the infirmary of the Falkenburg Road Jail in Florida on a "pregnancy diet" after her unborn child was conceived with a "rapper", reports TMZ

Earlier this month, Sierra pleaded not guilty to charges of disorderly intoxication, resisting arrest and violating conditions of her parole on earlier felony battery and possession charges, following a drunken bar brawl.

Local officials claim Sierra begged cops not to arrest her in return for oral sex, offering states that Sierra told the arresting officer, "I'll suck your d*** if you don't take me to jail."

Sierra has had quite a year -  in November she was sentenced to probation in relation to an April incident, when she was accused of hitting a man on the head with a glass in a Florida nightclub.

She was also charged with cocaine possession after cops found a small amount of the illegal substance on her as she was taken to jail.

Then earlier this month a major porn distributor announced it was planning to release a sex tape starring Sienna.