jim gives spock the sweater, starts babbling ("gaila taught me how to knit...i know you wear blue all the time, but it's a good color on you..." etc)
and then spock says "yes"
jim: "yes? to what?"
and the spock kisses him
and jim starts looking for mistletoe
spock: "I do not understand how a small flowering shrub relates to the circumstances at hand"
jim: "but you kissed me"
spock: "you were not [some vulcan phrase that i will totally look up that will mean proposing]"
jim: O.o o.O
spock: [blah blah cultural differences blah]
jim: "um, ok then" *pounce*
and then there was sex
:D You know you love me.