Apart from the fact that:
Women generally don't get turned on by flapping a hand at light speed around their general crotch area. And wiggling a rigid tongue from 3 inches away doesn't do much either.
Women may well not shriek, moan, etc. for the entire session at every single touch.
Two minutes of said flapping in crotch area and then furious pumping is unlikely to produce any shrieking and moaning.
He's not going to last for half an hour the first time he does it, possibly not ever, so and there's no need to feel bad, particularly if he's done more to her beforehand than two minutes of crotch flapping/tongue wiggling.
Deciding on the spur of the moment to, er, go in the other way is unlikely to go down well, and no, she won't start to like it once you've rammed it in.
And much, much, more, which I can't think of a family friendly way to describe.
I'm being flippant, but if you think you can learn much more from porn than what technically goes where you're really, really wrong. There's nothing wrong with a 13 year old getting off on porn, but having someone he can talk to to say "It really doesn't happen like that" to say what it's really like is about as useful as it gets. The book's a good idea for some of the more technical info as well, definitely.