The first photo (pictured above) had many people initially thought that the pair were in a compromising position while posing for the photo.
To put it clearly, it looks like they're banging.
As you can see, the 30-year-old personal trainer is topless, seemingly naked, standing behind his 28-year-old girlfriend who is bent over a kitchen counter.
"That first photo is poorly positioned," one fan wrote, along with a laughing emoji.
"Woo that pic looks dodgy," said another.
"Not going lie pic 1 look wrong," another added, with more laughing emojis.
"The angle of the picture says a thousand words," one fan wrote, while another added: "Hahaha... looks so suss".
Seb captioned the photo gallery: "Only we could make preparing pumpkin soup look so questionable."
While Seb is isolating in his home in Adelaide, Elizabeth is in Sydney, which made fans question if they were still together or not.
Lizzie addressed the issue recently, explaining in an Instagram video: "People are like, 'Why are you not at Seb's place?' I was there last week but got a phone call that I had to be in Sydney for work," she explained.
"So I left South Australia. I'm now in quarantine. I have to do my work thing and then I'll have to be in quarantine again [when I go back to Adelaide]. That's just life. Coronavirus puts a lot of stress on a lot of different aspects. Yeah, it's hard.
"Obviously you have everything to do with MAFS and a new relationship, and then you have to go back and forth."
She added: "Seb was moving to Sydney, but that's a lot to get organised and doesn't happen overnight. He is based in South Australia.
"I thought I'd be based in Adelaide for the time being but my work stuff is in New South Wales. Coronavirus has [had] a huge effect on a lot of people."