I think if would have been interesting if they tried... *Spoilers*
Wrestling before. You have two guys who were trying to relate to each other romantically in order to have sex with one another. The problem is that they don't see each other romantically so things like kissing and long hugging don't work. But at the center of every man is a base almost animal instinct and if you rile that up you have a chance of igniting that flame.
Meaning lots of guys get unintentional boners from wrestling or extreme bursts of adrenaline, had they done some monkeying around I think they could have rally'd.
Of course the movie wasn't exactly about that, just an observation.
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