You know Captain Kirk was based, at least partly, on Horatio Hornblower? Here, my all-time favorite vidder Mortmere presents her manip of that master and commander, Captain James Tiberius Kirk, R.N. (that's Royal Navy, not Registered Nurse).
[Kirk as a steampunk captain here.]
A surfeit of delight, there's also a new vid up on Mortmere's youTube channel:
"Kirk/Spock: Science Lab Party"
I owe my own vidding efforts partly to inspiration from this creator of sublime silliness, with a splash of slashy sexiness.