And this is what we want those hot college coeds to study--forget biochemistry.

First off...her tongue looks like she's stretching it to avoid...I don't know..smell or something and LOOK...there's hardly any dew on the pussy and the receiver's clit isn't even engorged.  That'a poser shot...if I ever saw one LOL

If you're going to lick pussy...put your face into it and curl that tongue!

They are natural at that, no need to learn.

offered some visual aids on how she could do it better?

you are sooo right on all those points. nice catch