I think the lube presentation problem is the idea that the sex was planned and not spontaneous. Kinda like having a condom in your hand when you kiss someone for the first time. Plus, I swear I can hear the wheezy *squack!* sound of a squeeze bottle.

Describing the sensation of it works, though.

It cracks me up that Jack always has a container of lube in his coat pocket. Car keys, lip balm, lube. Does he ever drop it when he's getting out a pen at the bank? "Excuse me, sir, I believe this Astroglide is yours."