As the rugby star took the actresses small pedigree pug Rocky - a gift to his girlfriend last year - for a walk near the couple's London home, Kelly lounged around looking sexy on a bed as she took part in a campaign for a new bed design.
Chore: Danny Cipriani was spotted taking Kelly Brook's little dog for a walk in London today
The model showed off her enviable figure in a set of photos for mattress manufacturer Silentnight, which is launching a range of high-tech beds called PocketZing.The mattresses are filled with pro-biotic microcapsules called Purotex, which work on the same principle as the pro-biotic yoghurt drinks, by putting friendly bacteria into the fabric of the mattress.
And Kelly raved about the health benefits of the new beds, and said they were exactly what her demanding lifestyle needed.
She said: 'Having such a busy schedule means I’m constantly on the go and don’t always have the time to look after my body in the way I’d like.
Enticing: Kelly lounges on a new pro-biotic high-tech bed in a campaign for bed maker Silentnight
'I’m not known for being a morning person, but I’m hoping that will change with my new bed! Let’s face it, everyone could do with a bit of zing in the mornings… couldn’t they?'
Unfortunately, her busy lifestyle appeared to have got the better of her yesterday when she was snapped running errands in London, where she was seen wearing dark glasses, no make-up and a similarly all black outfit.
Unusually, her trademark toothy smile was nowhere to be seen and she instead looked like she had the weight of the world on her shoulders.
Sweet dreams: Kelly shows why she is every man's ideal bedtime companion
His future is up in the air as the Wasps player is said to be considering joining Melbourne side.
And clearly such a move would mean major implications for Kelly, who is currently on tour with the Strictly Come Dancing Live show.
Cipriani is out of contract in the summer and was approached by Rebels representatives Rod Macqueen and John Connolly last week as part of the new Super 15 franchise's recruitment drive.
Should Cipriani complete a move to Australia, he would be unavailable for the 2011 Six Nations and therefore almost certainly out of England coach Martin Johnson's Rugby World Cup plans.
Asked whether it would be possible for Cipriani to remain part of the elite squad when based in Melbourne, Johnson said: 'No of course it's not. The seasons are the same.
Where's your smile, Kelly? Miss Brook looks decidedly downcast as she was seen out and about in London today
'It is impossible for him to play for England in the Six Nations if he is over there. I am sure he understands that.'
But Cipriani is adamant that playing for England is still his ambition and says an attractive offer from Wasps would resolve any problems.
He said: 'It was interesting to hear about the Melbourne offer.
'But I am in positive talks with Wasps, and they are moving forward. If they are positive, it will put a full stop to everything. My first loyalty is to Wasps.'
No doubt news that may just change the downcast look on Kelly's face.