My gracious, that's an awful lot of verbiage. What it means is: (1) "Can we get pix?" and (2) "Whoa - what do they look like?" To be honest, the mechanics of this fundamental physical procedure aren't really in a great deal of doubt, unless you happen to be a scientist who needs a really great excuse for getting laid on camera. Of course it ended up on Youtube. Where else would it be?
“to find out whether former and current ideas about the anatomy during sexual intercourse and during female sexual arousal are based on assumptions or on facts.”
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Has Captain Obvious left the building yet??