A Twitter user uploaded these cell phone pics of singers Chris Brown and Rihanna partying together in LA Saturday night. In one pic, Brown appears to rub Rihanna’s belly. And, in another pic, the lovebirds appear to kiss.

Brown, 23, dumped his long-suffering girlfriend, Karrueche Tran, for Rihanna after the dated secretly for over a year. A source close to Rihanna’s camp tells Sandrarose.com that Brown and Rihanna will make a “Surprise announcement” after RiRi’s album drops Nov. 19.

More from Sandrarose.com:

  • Rihanna reportedly “furious” that word leaked of her pregnancy
  • CONFIRMED: Rihanna and Chris Brown Back Together
  • Karrueche wants Chris Brown and Rihanna to know that…
  • Chris Brown confirms break-up with Karrueche: “I’d rather be single”