David proposed to Kelly while they were on holiday together, and friends claim it took the star just three seconds to say yes.
“He has also had enough of being a bachelor and can’t believe he has landed someone like her.”
The two were photographed together on a night out in London last week, after Kelly chose to end their relationship earlier this year claiming David was too "fame hungry" when it emerged he had reportedly tipped off paparazzi to where they were going on holiday.
She was said to be "humiliated" by the split, prompting her management to worry whether this engagement is a good idea.
Another source said to The Sun: "Kelly’s management has expressed concern over her choices of men in the past. David is no exception. But Kelly won’t be told."
David made headlines last week after crashing a van full of dead badgers into a bus stop. So you can see why Kelly would think he was marriage material...