We can't say that we're surprised by this latest bit of gossip, really. And neither is the fandom, who have plenty to say over this latest plot twist and the new round of drama it's stirred up.
Looks like we could use an old school Maury-style paternity test up in here.
According to In Touch Weekly, Louis may not be the dad, with a source telling them: "Someone very close to Briana says Louis wasn't the only guy she was hooking up with when she got pregnant."
The insider added, "She was having sex with someone else at the same time, so the baby may not be Louis'."
UPDATE: Gossip Cop is shooting down this latest tabloid report, with a source close to Briana telling the site that the claim made is a "malicious lie." Further, the site notes that their One Direction insider confirms Louis is the father and that the In Touch report is a "total fabrication."
And here's just a sample of some of the fan reactions...
"Briana's baby might not be Louis'" *tries to act surprised*— Wolfsbane. (@niammybabes) September 2, 2015
#WeKnowTheTruth "1/3 of the fandom: "THE BABY ISN'T LOUIS' "1/3 of the fandom: "LARRY IS REAL" "1/3 of the fandom: "WTF is happening"— One Direction (@OneDrecti0nFans) September 2, 2015