TikTok users were left with their eyebrows raised towards their hairline and their jaws hanging slack after spotting a raunchy scene in the background of a recent video.
The clip, shared to the account @thegohousedublin, showed three women heading outside in the dark to try their hand at a dance challenge.
Andrea Camila, Shauna Davitt and Lauren Whelan are seen having fun spinning around to the music.
But eagle-eyed viewers were quick to point out that in the window behind them, a couple can be seen having a rather intimate moment in bed, under the covers.
The three housemates seem oblivious to the couple's raunchy antics.
It's unclear if this moment was staged for the video, or if the women really didn't notice.
The TikTok video was captioned: "Did we do this right, none of us could swing our head ahahaha #fyp #gimmesometruth #thatonebeat #uponastar."
More than three million people have liked the video so far, with over 156,000 comments.
One person said: "Y'all ain't the only ones dancing in the video."
Another wrote: "PLEASE SAY THAT'S NOT REAL."
A third replied: "LMAOOO I DIDN'T REALISE UNTIL THE COMMENTS."
Someone else posted: "How did I not see it the first time?!"
"I just noticed the background," proclaimed a fifth.
Others thought the couple were a "mood" and some were concerned for the headboard of the bed.
The Go House is a 'TikTok house' set up in Ireland, where 10 influencers have moved in together to create content.
The social media project was set up by Thomas Arnold and Jake Browne.
Similar concepts exist in the US, but this is thought to be the first in Ireland.
Do you have a story to share? We want to hear all about it. Email us at yourmirror@mirror.co.uk
