Not particularly.  Keltham is trying to figure out if people are going sideways through alternate universes, or, if that's not what's going on, get a grasp on how 'rumors' operate inside Golarion.

Did Pela herself tell other people that Keltham and Asmodia were having sex, or just describe to them what her familiar had said?

Not particularly.  Keltham is trying to figure out if people are going sideways through alternate universes, or, if that's not what's going on, get a grasp on how 'rumors' operate inside Golarion.

Did Pela herself tell other people that Keltham and Asmodia were having sex, or that he'd gone to his cuddleroom with Asmodia, or just describe to them what her familiar had said?