A/N: Based off a line in Banbi-V's story "Secrets About Spock".
'Spock blushed forest green when he explainined Pon Farr to Jim, who replied, "So it's like a menstrual cycle on crack?"'
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McCoy wasn't sure why he was doing this. He wasn't sure why Jim was there, either, but that was beside the point.
Why wasn't Spock the one explaining this again?
It was a few months after the Enterprise's five year mission had ended, and another was due to be sent out after a three month shore leave. By this point the situation with the severe lack of Vulcan population had been, to put it politely, dealt with. Oh, and thanks to Spock more and more Vulcan's were joining Starfleet. Whereas there had only been one previously, there were now near thirty, mostly cadets under the age of eighteen, though a few had been officially assigned to various ships. And thus, the new medical students had to learn about Vulcan physiology. All of it.
And Leonard H. McCoy got the lovely job of explaining Pon Farr, aka "blood fever", with Jim as commentary.
Oh, what a fun this to do after just returning to Earth. Explain the very painful pre-process of Vulcan's reproducing.
With, as previously mentioned, Jim at commentary.
There wasn't an incredibly large amount of students in the class, maybe fifty total (the last remeaining suckers who didn't sign up fast enough and lucky them! They end up with McCoy.), and the room wasn't very large, though went steadily up. Nine rows of six with a few empty seats. No one really got why it was set up that way. Someone was bored, maybe?
McCoy finished his lecture in a mere thirty-five minutes, ending with an impromptu "any questions?" after explaining the horrible emotional results, having had to deal with Spock during this time himself. A few hands shot up, particularly one boy in the back who looked oddly like Chekov and was likely around twenty or so.
"You, up in the back." McCoy said, pointing at the Chekov look-alike. "What?"
"Soooo…" He said, dragging the word out with a slight Russian accent. His hand remained poised at shoulder level, head cocked curiously to one side. "Eets like a menstrual cycle on crack?"
Jim choked on the coffee that he was about to drink, having to hold back his laugh.
McCoy just scowled, pointing to another student nearer the middle.
This young prodigy, with slightly shaggy black hair and an absolutely bored "I do not want to be here" attitude about him, scoffed slightly. "We might never have to deal with this, right dude? I mean, it only happens once every seven years. I already have to deal with my girlfriends PMSing once a month, I don't want to have to go through that on a more intense level."
This time, Jim couldn't hold back the laugh, unfortunately spraying hot coffee on his friend, only increasing his already bad mood.
Needless to say, McCoy walked out before he could kill anyone.
