Amy Winehouse's husband Blake Fielder-Civil has been writing X-rated love letters to a female jailbird he has never met.

Love rat Blake - who is currently on remand at London's Pentonville Prison awaiting sentencing - revealed his sexual fantasies to Melissa Goldstone, who is serving a two-and-a half-year sentence for conspiracy to supply class A drugs at Surrey's Downview Prison.

In one letter, published in Britain's The Sun newspaper, he wrote: "I'll bend you all over the place, with my hand round your throat."

While in another he described how he wanted to romp with Melissa in a restaurant toilet once he is released. The note read: "I squeeze your throat whilst your s****ing me and I ask you if you are a dirty b***h."

In one of the dozen letters he sent, Blake claimed he had dumped Amy, 24, because she had cheated on him twice with her manager's aide Alex Haynes, 22, and photographer Blake Wood, 21.

It read: "Me and Amy are always gonna be close but we've decided we're better as friends. The fact is we're in an open relationship (well I didn't know we were til recently!!!) but I don't want that. I just want a loyal sweet, staunch, sl***y girlfriend."

Meanwhile, Amy has walked out of a hospital. The troubled star stormed out of The London Clinic - where she was having treatment for scarring of the lungs - just days after being released to perform at Nelson Mandela's birthday concert on Friday and the Glastonbury festival on Saturday.

A friend said: "We feared a taste of the outside would remind her what she's missing and it would be hard to get her back into life at the clinic. That's exactly what's happened."

The 'Rehab' singer told dad Mitch she was 'climbing the walls' and if he didn't get her out she would walk. A spokesman for Amy confirmed she had left the clinic and would be treated as an outpatient.

RELATED PHOTOS AND ARTICLES
Amy Winehouse - Amy Winehouse in Concert at G-A-Y in London - April 14, 2007Amy Winehouse - Lollapalooza 2007 Day 3Amy Winehouse - 2007 Brit Awards - ArrivalsAmy Winehouse - Lollapalooza 2007 Day 3Amy Winehouse - Amy Winehouse at the Brush Tent at SXSW
Amy Winehouse Continues Hospital TestsAmy Winehouse May Have Tuberculosis
Doctors Reveal Amy Winehouse Could Die Within Three Months Due To EmphysemaAmy Winehouse Doesn't Have Emphysema, Dad Clarifies
Amy Winehouse Smokes While Rehearsing For ConcertJay-Z Mocks Oasis Singer At Glastonbury Performance