It's gotta be the 18th variations from the Rhapsody on a theme by Paganini of Rachmaninoff. What a variation!
Oh yeah! JK has a point! Musical accompaniment for making love has to have a climax that has been built up and then just releases into this huge orgy of aural (and oral) pleasure! If this is true, then I have to mention Alkan's Concerto for solo piano, Op. 39 Nos. 8-10. No. 10 is where the climax really lies. And the best part about it is that the concerto is 50 minutes long! It's both a test of the pianist (as well the penis') stamina and endurance.
Hilarious! I have to reverse the thought: What would love making look like if it was set to the following pieces?Minute Waltz4:33Theme from Zorba The GreekGrand GalopTannhäuser OvertureMoonlight sonata, 1st movementFlight of the bumblebeeBolero