think more upper arm than forearm
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not the plaything of a boy, not the weapon of a man, but a maypole of so enormous a standard that, had proportions been observed, it must have belonged to a young giant by sleepymccoy
Fandoms: Star Trek: The Original Series
09 Jun 2025
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Summary
Hiding from some aliens, Spock finds himself pressed up against McCoy who quickly, reluctantly, sports an erection. This in itself would be fine, Spock can shrug of a human's lack of self control, except it turns out McCoy is hung like a fucking horse.
Spock promptly loses his mind obsessing over whether or not he could take a dick that size. He likes a challenge after all. He goes ahead and gives it a red hot go (ow). Before terribly long, though, McCoy notices. And matters escalate from there.