Two Big Brother stars have already raised eyebrows with their instant chemistry in the house.

Colin, 21, and Holly, 31, have shared an intense chemistry ever since entering the house, and many fans have been left wondering if their connection is genuine or a game plan.

Evicted housemate Michael issued a stern message to the house upon his exit, accusing Holly of being a game-player before branding her a “puppet master”.

“Holly, well done for your fake relationship with Colin,” he said. “We all know that relationship will not last until halfway down the eviction runway. I do think you played the game. I don’t think you’re into Colin at all.”

After Michael’s bombshell comments, Colin was left doubting their connection, and he broke down in tears in the diary room on Monday, November 17.

“I can’t even comprehend why she’d like me… If something’s too good to be true, it usually is, right?” he said.

Big Brother star Colin was left in tears over his relationship with Holly on November 17. (Credit: Network 10)

“I can’t think of any girl off the top of my head that would run to me. Why would it be her? Why would it be the model? Why would it be the most beautiful girl that I’ve seen in my life?”

Colin then spoke to Holly about his doubts, admitting it makes him doubt her feelings when she mistakenly calls him Connor, the name of their housemate, instead of Colin.

Later, voicing her frustrations to Coco, Holly once again got his name wrong and called him Connor.

Their relationship has been at the centre of speculation both inside and outside the house, and evicted housemate Michael, 49, was less than convinced about their apparent romance.

Speaking exclusively to New Idea, Michael dished, “A connection? No! She’s the puppet master in that sense.”

“She’s just using that showmance to further herself in the house, then pretending she wants to go, and then she doesn’t want to go.”

Colin and Holly raised eyebrows with their first kiss, and one housemate doesn’t believe their romance is real. (Credit: Network 10)

“She’s in the double bed with Colin, and then she’s telling Colin I don’t think I should be in the double bed tonight, that was yesterday, and then it was ‘oh maybe I will, I’ll decide later’, she’s just a headache.”

Michael made waves in the house with his strong and controversial opinions, and he certainly didn’t hold back while issuing his verdict on the supposed lovebirds.

“Anyone can see that [it’s a game plan], he needs a few more 00s on his bank balance to bag a girl like Holly,” Michael added.

Holly was hit by speculation that she was using Colin to stay in the Big Brother house when they shared their first kiss after she was nominated for eviction.

She narrowly avoided being evicted as Michael was instead the first housemate to pack his bags, and it remains to be seen if things will continue to heat up with Holly and Colin.

However, Holly insisted that she’s formed genuine “romantic” feelings for Colin as she set the record straight while speaking to Big Brother in the diary room on November 16.

When asked how she defined their relationship, she replied: “He’s my dawg. I don’t know, we connect on a level, I enjoy my time with him, I’m sad that like – I’ll for sure see him ion the outside world, for sure.”

She was then quizzed on whether her feelings were “genuine”, to which she said: “Yeah, it’s romantic. I love romance. I feel like I’d be a cold-hearted human if I didn’t say it was, it’s romantic for sure.”

Michael, 49, insisted Holly is a “puppet master” as he branded her actions a game plan. (Credit: Network 10)

The pair raised eyebrows in the house when they shared their first kiss, particularly with housemate Vinnie, 21, who fans theorised had also been interested in Holly.

Colin and Holly shared their first kiss on Thursday, November 13, in a moment that shocked fans.

The pair were sharing a hug on the bean bag after Holly found out she was put up for eviction when the intimate moment occurred.

“Damn, 21-year-olds really know how to kiss these days,” Holly told Colin as they hid underneath a blanket to share another secret smooch.

Speaking in the diary room after, MMA fighter Colin jumped in excitement and grinned as he appeared overjoyed by his new connection.

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They were caught in the act by their housemate Vinnie, who snuck off to the diary room to voice his frustration, after fans speculated he too was interested in Holly.

Colin and Holly’s kiss also divided viewers, with some rooting for the couple, while others speculated it might have been a game plan for Holly to stay in the house.

Holly was nominated for the first eviction on November 16, but narrowly avoided going home as Michael became the first person to be eliminated.

Commenting on the kiss, one viewer wrote on Instagram: “I can see the heartbreak coming.”

Another theorised: “She’s playing you Colin.”

Holly has insisted her feelings for Colin are genuine after fan speculation. (Credit: Network 10)

“Holly will do anything to try to stay in the house,” a third claimed.

“Bros about to get his heart broke,” another added.

However, others shared their support for the couple, with one saying: “Let them be happy!”

Model Holly already has some famous ex-boyfriends as her high-profile connections emerged upon her arrival in the house.

Last year, Holly had a whirlwind romance with Luxe Listings Sydney star Gavin Rubinstein.

Model Holly has caused a stir since entering the house. (Credit: Network 10)

The pair went public with their romance in August 2024, but split soon after following an “intense” holiday.

“Things got complicated when they started travelling together,” an insider told the Daily Mail.

“It was fast-paced from the beginning, but they were just in different places in life.”

According to reports, Holly was also briefly linked to Olympic sprinter Usain Bolt in 2017 after they met at the Crown Melbourne.

Holly is also the BFF of Married At First Sight bride Carina Mirabile.

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