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They were recently spotted flirting at a raucous party in Ibiza.
And Caroline Flack, 39, cheekily reminded 2018 Islander, Wes Nelson, 21, of their cosy meet up as she quickly brought it up during ITV2's Aftersun on Sunday night.
Love - Island - Host - Engineer - Ibiza
The Love Island host left the former engineer looking red-faced as she discussed their Ibiza holiday, in front of Wes' ex, Lissy Roddy, who sat in the studio audience.
Caroline introduced the spin-off show, before directly addressing the situation. She confessed: 'I saw Wes in Ibiza at the weekend.'
Wes - Head - Blushing
Embarrassed Wes was then seen nervously shaking his head and blushing as he replied sheepishly: 'Don't do that.'
Caroline went on to ask Wes how his holiday was, to which he quipped back: 'A bit messy. You was the same as well.'
Presenter - Conversation - 'I - Thanks
The glamorous presenter ended the conversation by saying: 'I was fine, thanks.'
Eagle-eyed viewers watching Aftersun quickly took to Twitter to point out what made Caroline and Wes' on-screen flirting even more awkward.
Love - Island - Ex-girlfriend - Lissy - Roddy
The Love Island runner up was being watched by his ex-girlfriend, Lissy Roddy, who sat in the studio audience to speak about her friend on the current show, Molly-Mae Hague.
One user tweeted: 'Imagine sitting in the audience on Aftersun to talk about your mate Molly-Mae and your EX BOYFRIEND (Wes) is on the...
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