LOVE Island stars have been left fuming as the Heart Rate Challenge finally aired.
The sexy segment, which has become an annual part of the show, saw the islanders' pulses race.
As the girls and the boys took turns with their raunchy routines for their co-stars, some have been left fuming.
Nicole was left less than impressed when the results revealed that Ciaran Davies' heart raced the most for Grace Jackson's routine.
But Nicole showed her dedication to her man, with the results showing Ciaran turned her on the most.
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As the boys' results were read out, Nicole could be heard whispering: "F***ing course it was."
She added: "I don't care, I actually don't care."
Meanwhile, as Ronnie's heart rate was raised by Jess, Harriet rolled her eyes as Jess said how he was 'only human'.
The girls have been involved in drama on the show since the very start, after finding themselves in a love triangle with the semi professional footballer.
And tonight their bitter feud kicked off again.
Jess removed herself from the situation, and Ronnie decided to get to know Harriett, but she was later dumped when bombshell Tiffany Leighton arrived.
However, the HR co-ordinator told him that something was missing just days before she was dumped from the villa, and now Ronnie has awkwardly gone back to Harriett.
After being branded a "villain" for lying to Harriett about Ronnie last night, Jess made a beeline for the ladies' man in the challenge.
As she performed her sexy routine on Ronnie, she licked his ear and said: "You f***ing wish."
On Monday Jess and Ronnie went for a chat - and he told her that he wants someone to come in and treat her right.
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He said: "I would love nothing more than someone to come in here and treat you the way you deserve, I want to be 100 per cent with everything."
However viewers called out Jess when she told Harriett, Nicole and Matilda Draper something different.
She said that Ronnie had said: "You deserve someone who is 100 per cent for you."
An annoyed-looking Harriett asked: "He said if you'd have recoupled with him he would've been 100 per cent for you."
Nodding Jess said: "Yeah. At that time, yeah."
The episode ended with a shock twist as two brand new islanders were introduced to Love Island fans on screen.
Harriet read out a text which said: "Your heart rates weren't the only ones raised tonight.
"Jess and Joey, Trey and Jessy are waiting to date you please heads out of the Villa."
Trey and Jessy will make their official on screen debuts during tomorrow night's Love Island.
