Potential half-sisters Carley and Mercedes fell in love at first sight at the bar. Playing siblings or dating just got a whole lot more complicated for one couple who recently found out they may share the same father.

Carley and Mercedes — who have been dating for two years — revealed they might be half-siblings after finding out their mothers had relations with the same man.

The pair, who also have an OnlyFans account with the handle @notyouraveragesisterz, shared the unsettling news in a clip that has been viewed over 6 million times on TikTok, leaving their 560,000 followers desperately urging them to get a DNA test.

Carley and Mercedes found out they may share the same father.

“When you find out two years into dating that your moms both slept with the same guy,” the message on the now-viral TikTok read with the caption: “Should we take a DNA test?”

“If we’re actually related is it wrong to stay together?” the pair asked followers in a comment.

TikTok users are urging the couple to do a DNA test.

Many users commented that Carley and Mercedes look alike.

Thousands of TikTok users chimed in with their thoughts, most telling them to do the test.

“I think the real risk would be NOT getting the DNA test,” a user commented.

“Take one immediately,” another agreed, with Carley and Mercedes responding, “We’re scared.”

“I have no idea who you guys are and I immediately thought you were sisters before reading the text,” one user wrote.

“That could explain why you two look like sisters,” another user reflected.

“Am I the only person who thinks that regardless of the results it doesn’t matter?” someone else wrote.

“At that point, blissful ignorance will go a long way,” they added.

In their most recent video, the duo said they were looking into a DNA test but haven’t done it yet.