Robert Pattinson has been linked to just about every Hollywood beauty under the sun following his split from Kristen Stewart last May. Luckily for Robsten fans, one report is now alleging that the two are secretly dating.

Pattinson, 28, recently spent the night with Stewart, 24, at her Los Angeles abode on June 12, the same day he was allegedly spotted flirting with 29-year-old pop singer Katy Perry at The Rover film premiere. `Pattinson secretly spent the night with his ex Kristen Stewart,` said a source.

While the Twilight co-stars are speculated to have rekindled their three-year romance, - which was interrupted by infidelity on Kristen's part - insiders claim the duo won't be publicly reuniting anytime soon despite Stewart's desire to do so. The actress is said to be in love with the British actor while the latter is dillydallying.