The 33-year-old model contacted Stacey Simcox - whom the rugby star had been trying to bed - after discovering a number of saucy messages and steamy pictures from a series of girls on her boyfriend's secret phone.
The star sent Stacey, 25, a photo from Danny's phone of a naked woman named as ''Jenna'' in a sexy pose on a bed, then a message saying ''your in good company (sic).''
When Stacey asked who the girl was, Kelly replied ''Someone Danny is f***ing. One of many.''
Stacey then asked the actress to ring her and the pair spoke for a few minutes.
Stacey told The Sun newspaper: ''Kelly called immediately. I recognised her voice but she was snotty and understandably very angry.
''She said, 'Take it you're another one he's f***ing. I've spoken to six other girls tonight he's been f***ing.'
''I asked where Danny was and she told me, 'I've been on his phone, he's at my house'. Then she said, 'Some of the girls are slags and some are motherly - I would put you in the motherly category'.
''I assured Kelly I never met him and never intended to, and that I'd never slept with him. She was ranting and raging, but quite patronising. You could tell she was really hurt and upset.''
Danny - who rekindled his romance with Kelly earlier this year - has confessed to sleeping with a number of girls and exchanging saucy messages with them.
He said yesterday (07.08.13): ''I can't believe what I've done.''
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