The 23-year-old actress recently visited Pattinson's rented house in Beverly Hills and spent hours there, reported E!Online.
After the meeting, Stewart was pictured driving her blue Toyota pickup truck with Pattinson's silver Jeep trailing behind.
It is believed that the ex-couple were allegedly heading in the same direction, which was the actress's home.
However, their plan changed when they realised that paparazzi had been tailing them.
The 27-year-old actor and Stewart had found love while filming the "Twilight' series but suffered a setback when the Stewart's affair with her 'Snow White and the Huntsman' director Rupert Sanders became public.