Katy Perry and John Mayer were photographed together on a date at the Chateau Marmont hotel last night, where patrons reported that the walls suddenly began weeping Massengil and Summer’s Eve. Us Magazine says:

The date, the witness adds, was definitely romantic, with the “Teenage Dream” singer and Mayer “holding hands across the table,” sneaking kisses, and laughing.

The newly divorced Perry and Mayer [were also seen together] June 19 at Soho House in West Hollywood. “They were affectionate, holding hands and cuddling!” an observer said. The couple met up the very next night at Perry’s place, where they munched on pizza.

I’d say that it might be a good time to invest in the pharmaceutical company that makes Valtrex, but at this point their STDs are probably so highly evolved that they’ve become each other’s antibodies. Our only hope that one of them is sterile.

Katy at the “Part of Me” premiere in Rio de Janeiro last week: