Legendarily Horny (TOS S1E3: Mudd's Women)

When Kirk & Co. pick up an untrustworthy businessman named Harvey Mudd and his women associates, the men on the Enterprise are overtaken by a spell. But when Mudd turns out to be making deals behind Kirk's back it’s finally time to pry off this annoying barnacle. Will Kirk be able to withstand the spell? How much slink can you get in one episode? What’s with the groovy Spock?

It’s the episode Big Rod wrote after watching a Nancy Sinatra music video!