Chris Brown and Rihanna, whose romance had a spectacularly violent and public flame-out in 2009, appear to be hooking up again — at least on Twitter.

The singers sent a few public tweets Thursday that seemed to have very specific audiences. At 4.06pm, Brown, who follows Rihanna on Twitter and vice-versa, tweeted, "Love U more than u know!"

A minute later, Rihanna tweeted, "I'll always love u #1LOVE." This isn't the first time the two parties, who have been separated by a court-mandated restraining order that requires Brown stay 50 yards away from Rihanna at all times, have shown signs of looking for a reunion.

On December 15, Brown's mother, Joyce Hawkins, tweeted, "Hello ladyI miss you and love you!!!!! You know who you are!!!!"

While that in itself isn't unusual (90 per cent of "Mombreezy's" tweets involve love in some capacity) this one was matched a short time later by Rihanna, who tweeted, "Miss+Love u 2."

Brown and Rihanna's relationship came to a very public end when Brown was arrested on domestic assault charges after an incident with Rihanna, which left her with visible injuries on her face and body. Brown later pleaded guilty to a felony and accepted a plea deal of community service and five years' formal probation. Rihanna has since said she's still a Brown fan.