Marnie Simpson has reportedly enraged MTV after she was spotted kissing Casey Johnson.
The 25-year-old beauty and Casey are both signed to star on the live dating show "Single AF", which will see them go on a series of dates with other people and document their experiences on social media.
A source said: "MTV are not happy.
"They signed them as singletons looking for love and going on dates around, but they're only interested in each other and not taking the show seriously."
The broadcaster reportedly thinks Marnie and Casey have basically secured a couples holiday to Mexico for themselves.
The insider told The Sun Online: "Worse still, they are doing nothing to hide their feelings and have been posting loved-up videos and pictures on social media.
"It's like they've just been given a free couples holiday!"
Casey revealed last week, before the show launched, that he was attracted to Marnie and had already started flirting with the brunette beauty.
He shared: "I fancy Marnie! She's hot. She's up for the craic, I hate girls that are too heavy - I just want someone I can have a laugh with!"
And Casey claimed that Marnie was also attracted to him.
He said: "I think Marnie is so fit. I know she fancies me! We've been talking a bit - when we found out we've been doing the show we started texting and now we're texting a bit.
"But we haven't done anything because we wanted to save it. We've been talking quite a lot."