SOFA, SO BAD: Topless Keelie & Jack got caught on gran's couch

CALLOUS Keelie Roberts, 22, broke her 73-year-old grandma's heart - by STEALING her 63-year-old fella.

Now the odd couple are shacked up, planning to wed, and - thanks to the old boy's pension, savings and will - Keelie's on a nice little earner.

The bizarre affair began when caring gran Margaret Linden - and her white-haired partner of 17 years, Jack Dobson - gave the jobless girl a roof over her head.

But Margaret regretted her kindness when she came home to find her topless granddaughter snogging retired teacher Jack on the sofa.

Betrayed: Margaret

But last night brazen Keelie defended her treachery declaring: "Jack's better off with someone wild like me. We have a good, healthy sex life."

And according to her, Jack may be heading towards a zimmer frame but he knows all the wrinkles.

"He's far more experienced than boys my own age," she added. "I feel sorry for gran but you can't help who you fall in love with."

After being kicked out by Margaret, the odd couple share a flat in Camden, north London. Still unemployed, Keelie confessed: "I did think about working as a hairdresser but I can't be bothered. If I want money for new clothes or to go out, I just ask Jack.

"He's just bought me a £3,000 engagement ring and gives me about £300 a month to spend on myself, plus he pays the rent on our flat and all the bills.

"Obviously he'll die before me but he'll leave me financially secure. He's written me into his will so I don't have any money worrries."

Keelie revealed how former English master Jack made his first move during ITV drama Heartbeat while unsuspecting granny Margaret was out.

"I was shocked," admitted Keelie. "He's no Brad Pitt but it doesn't bother me that he's old and wrinkly. And I love seeing people's faces when they learn we're lovers!"

Jack boasts he's never been happier. "I did think about how Margaret would feel but I just wanted to be with Keelie," he said.

Angry Margaret has now disowned the pair. "Keelie's ruined my life," she stormed. "I let her into my home and she repaid me by stealing Jack. It's disgusting."