By Lily Waddell For Mailonline
Published: 19:24 GMT, 1 February 2019 | Updated: 00:04 GMT, 2 February 2019
She is said to be in the throes of a new relationship with her personal trainer.
And Caroline Flack, 39, and Bradley Simmonds, 25, did little to extinguish the rumours when they enjoyed a very flirtatious exchange on Instagram on Friday.
The Love Island host joked the exercise guru went 'hard' on her after her very boozy night out which kickstarted the banter with her rumoured love.
'He went hard on me': Caroline Flack, 39, continued to fuel romance rumours with Bradley Simmonds, 25, as they shared a VERY flirty Instagram exchange on Friday
She told the camera and her fans: 'I've learnt a valuable lesson. If I go out and if I get home late and then I train the next morning with Mr Simmonds.
'He does not go easy on me. That was really hard. I'm dying.'
Bradley re-posted Caroline's Instagram story with the cheeky remark: 'Damn right.'
Caroline was the belle of the ball in a nude polka dot gown when she led the glamour at the BAFTA EE Rising Stars awards ceremony.
Heating up: The Love Island host joked the exercise guru went 'hard' on her after her very boozy night out which kickstarted the banter with her rumoured love
Bradley is the latest man said to catch Caroline's eye in recent weeks after she was seen getting cosy to Strictly's AJ Pritchard, 24.
A source told The Sun that the duo have been flirting during Caroline's workout sessions with the trainer.
The insider added: 'Bradley’s really handsome, and even though they’re not dating, there’s a flirtation there. And who wouldn’t fancy Caroline?
'She’s not looking for anything serious but it’s always nice to have a bit of male attention, especially from someone so hot.'
Banter! Bradley re-posted Caroline's Instagram story with the cheeky remark: 'Damn right'
The trainer and sports influencer works with a host of stars to change their fitness and boasts 267,000 Instagram followers — despite Caroline not being one of them.
A representative for MailOnline declined to comment when approached by MailOnline.
A source told MailOnline: 'They are training together most days and there is definitely some friendly flirting going on! Caroline’s just in a really good place at the moment.'
Recently, Caroline was snapped getting cosy to Strictly Come Dancing pro AJ Pritchard, 24, who is just a year younger than Bradley.
Sensational in spots: Caroline was the belle of the ball in a nude polka dot gown when she led the glamour at the BAFTA EE Rising Stars awards ceremony
They were said to be getting close at the National Television Awards after-party at London's The O2 with sources saying they locked lips.
Insiders at the bash claim the duo moved around for some privacy before they were spotted in the alleged clinch behind the scenes.
Caroline was engaged to The Apprentice's Andrew Brady, 28, in April last year but their romance was a turbulent love affair that ended a