The Twilight hunk, 28, is reportedly smitten with the 29-year-old “Firework” singer and even hooked up with her at an after-party for his latest film.
They were “all over each other,” after The Rover premiere in Los Angeles on June 12 an eyewitness said.
“Rob was his usual charming self, greeting a solid wall of fans on the red carpet,” the source said.
“When Rob saw Katy his eyes lit up,” the insider said. “She looked gorgeous in a lace sequin black mini-dress, and they hugged and kissed.”
Even though Kristen Stewart’s hunky ex always attracts the ladies, he wasn’t interested in anyone else at the party.
“At least 10 hotties were hovering around Rob, but his focus was on Katy,” the source said.
“He kept kissing her the entire night.”
As the party was winding down about 12:30 a.m. both Perry and Pattinson were still going strong.
“When Katy got up from a sofa that was in front of a fireplace, Robert walked over to her,” said the eyewitness. “They kissed and hugged again. They were clearly trying to stay under the radar, but they couldn’t help showing their feelings.”