I've heard it suggested that Spock's pon farr came to an, uh climax, so to speak, at the end of the fight with Kirk. Maybe in pon farr, at least with Spock, violence is rough sex.
Are we sure there was no telepathic component in STIII? I don't know where I've gotten this idea that pon farr involves a telepathic component. It might be from a novel or even fan fic, but I thought it was a real thing.