Josh and Tay from Big Brother Australia caught on camera sharing a passionate kiss shortly after entering the house

Big Brother Australia returned to TV screens on Monday night.

And the new season is already heating up, with two housemates caught sharing a steamy kiss on camera during the show’s premiere.

Josh, 28, and Tay, 20, passionately smooched just one day after entering the house and admitting they were attracted to one another.

‘Myself and Tay? One hundred per cent,’ Jay told Big Brother.

Tay also said she was excited by Josh’s admission, adding: ‘I was glad because I think Josh is the one for sure – out of everyone in the house, 100 per cent for sure.’

Big Brother Australia’s Josh and Tay caught on camera sharing steamy kiss just hours after entering the house

The next day, the housemates were asked to select two people to enter the ‘King and Queen Suite’.

The Big Brother contestants nominated Josh and Tay to spend the first night in the suite, which features a large bed and luxurious bath.

‘It’s a privilege to be the first king of the house and I couldn’t ask for a better queen,’ Josh said.

‘I only met her yesterday, but Tay … she’s an unbelievable girl and great looking too, very beautiful.’

Josh, 28, and Tay, 20, passionately smooched just one day after entering the house and admitting they were attracted to one another

After entering the room, Tay and Josh were seen cuddling in bed before Big Brother dimmed the lights.

They then shared a steamy kiss, which was caught on the night-vision camera.

Queensland-based Tay entered the house with her twin sister Ari Wilcoxson and they will also be competing as one.

After entering the ‘King and Queen Suite’, Tay and Josh were seen cuddling in bed before Big Brother dimmed the lights and they shared a kiss