Don't forget, kids, water is a traditional symbol for sexuality, the deeper the, ehm, deeper, I guess - in these old movies when two people "go swimming" (see also Gilda) it usually stands for some other wet physical exertion.
How many other things can stand-in for sexuality? If you can put a limit on it you're not using your imagination.
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The water could stand for the dripping of a woman for a man (another perfect example is Ryan's Daughter
The burning burger, the man was hot for the woman, had to smother it to stop the burning.
Putting on the lipstick oral sex.
Swing away, Merrill....Merrill, swing away...share
How about From Here To Eternity? I'm not good with sexual innuendo, but that's some steamy stuff, and the water seems to make it more so.
I'm not a woman much less Deanna Durbin, but the old-time glam-shot appeals to me.