These clubbers were pictured apparently having sex outside El Divino nightclub in Belfast last Thursday.
Police said officers are currently not investigating the alleged incident.
However, people have been very quick to express their own opinions on the matter, focusing on the girls involved.
Then Twitter users soon started asking why the men involved weren't being singled out as well.
This tweet in particular from the Daily Telegraph in Australia drew criticism.
A spokesperson for the Belfast club told BuzzFeed: "Ensuring all its customers enjoy an evening out in a safe and secure environment is paramount for the staff of El Divino.
"We have a robust management strategy in place, with all staff trained on the policies and procedures to take regarding inappropriate activity of any kind within, or in the grounds of, our venue.
"We have carried out our own investigations and spoken to the individuals concerned, whilst we do not condone this type of behaviour we are completely satisfied that nothing untoward occurred."