Aysha Soper, 24, says she and lover Lewis Brown were able to romp in a shower after the lag's handcuff's were removed.
But now saucy Miss Soper claims guards should have left his handcuffs on.
Brown is serving two years for driving while disqualified, handling stolen goods, and possessing a prohibited item in prison at HMP Chelmsford.
He was admitted to Broomfield Hospital in February for 10 days after complaining of a muscle injury, where Miss Soper claims the romp took place.
"They took his handcuffs off and let us both into the shower together and we locked the door and two of the screws stood outside," she told the Sun.
"It felt naughty, knowing he was a prisoner. I wish they’d let him keep his handcuffs on."

