I don't know. If the pon farr cycle can be over-ridden by "extreme feminine beauty," doesn't that basically translate to "Vulcans only have sex every seven years--or when they meet someone hot."
So Vulcans can also have sex when, er, they're attracted to someone? That sounds logical, not to mention broad enough to cover most sexual encounters.![]()
I think the terms "extreme feminine beauty," makes it pretty clear isn't not referring to someone who is just "hot." In any case non-seven year cycle sexual encounters should be considered rare, rather than hooking up with any hottie they happen to meet.
Do Salmon go into spawning mode every time a hot fish swims by? Do the giant eelbirds of Regulus Five suddenly go back to their caverns for a quickie when a sexy female flies by?
There are biological reasons why humans are willing and able to have sex pretty much any time. I just seems uninventive to give Vulcanians the same human libido just because we can't imagine going without sex for seven years.