Rihanna and Chris Brown were caught together at another New York club, 1Oak, just one night after they were spotted making out — and locking themselves in the bathroom together — at Griffin. Sources told us the troubled off-on lovers reunited at 1Oak at 3 a.m. yesterday morning.

PHOTOS: RIHANNA

“Chris arrived around 2 a.m. with friends and was drinking Champagne,” while DJ Sam French, Daniel Chetrit and E Rock spun tunes, a source told us. “Then, around 3 a.m., Rihanna came in with some girlfriends, and then went directly to his table.” Sources said the pair continued their public display of affection and left together in an SUV around 4 a.m.