Paiton, who hails from Wigan, is a 19-year-old student who certainly seemed to make an impression on the Dark Destroyer.
As she whizzed through the first round of questions with great success, Sean noted that he was impressed with her general knowledge.
Before they went head-to-head in the cash building round, he told her: "You're the best 19-year-old I've ever come across."
Bradley Walsh, who presents the ITV gameshow, was shocked by his admission and quickly tried to move the show along to avoid further embarrassment for Paiton.
Paiton whizzed through the cash building round on The Chase
The Chaser Sean Wallace told Paiton he was impressed by her general knowledge
You're the best 19-year-old I've ever come across
And it wasn't just the host who was left open-mouthed by the remark, viewers at home were also surprised by Sean's confession and took to social media to scold him for flirting with the youngster.
One viewer tweeted: "Awkward moment when the chaser says "you're the best 19 year old I've ever come across" #TheChase."
While another added: "'You're the best 19 year old I've ever come across.' The Dark Destroyer #thechase #dirtyfiend."
"Chaser talking filth there #thechase," a third shared.
Bradley Walsh was left shocked by the chaser's admission
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The Chase viewers scolded the star for flirting with Paiton
Someone else continued: "You're the best 19 year old I've ever come across.' Don't call him The Dark Destroyer for nothing I suppose. #TheChase."
Another noted: "#TheChase SEAN – "She's the best 19 year old I've come across". Bradley moved on very fast!"
Last week Sean was slammed by viewers for his poor performance on the show as he failed to answer simple questions correctly several times.
The Chase airs weekdays on ITV at 5pm.