Kirk complains of a sore back and when someone starts giving him an unsolicited back rub, he assumes it's Spock, rather than the scrumptious Yeomen Tonia Barrows, that's giving him relief from his aches and pains.
Kirk confounds Yeomen Barrows's handiwork with Spock's
McCoy sees a giant rabbit, gets "killed" by a medieval knight on horseback and then shows up, alive and well, arm-in-arm with bunnies of a different sort.
McCoy in a heaven of sorts after "dying"
Then there's the sub-plot of how a strange force field emanating from the seemingly idyllic planet that the Enterprise is orbiting is draining its engines; this sub-plot is rather abruptly dropped by episode's end and not satisfactorily concluded.
I'm not saying that Theodore Sturgeon, the writer responsible for Shore Leave, was on drugs when he put pen to paper, but it sure would explain a lot.
And am I the only one who caught on to the fact that every member of the crew that walked on the bridge at the conclusion of the episode got laid? Knowing Kirk, he definitely got it on with the simulacrum of Ruth, the girl from his past. McCoy and Barrows presumably did something to explain the smiles on their faces. And you can't tell me that the swashbuckling Mr. Sulu didn't do anything with the simulacra of the cabaret girls he ended up arm-in-arm with in the final scene on the planet's surface?
Everyone is all smiles after their shore leave
Or am I reading too much in what may be just a bunch of goofy smiles?