There is a Valentine's Day party aboard the Enterprise and Kirk and Spock find themselves wanting what they shouldn't.

After the events of Shore Leave Kirk convinces Spock to stick around and Spock may have a change of heart about the whole relaxation thing.

During the events of The Naked Time, as the Enterprise plummets towards the surface of Psi 2000, Spock makes an emotional confession to his captain and Kirk couldn't be happier.

Q thinks Picard needs to relax more, and gives him the night off.