ALWAYS trust the prof to find the good stuff. Gorgeous girl, excellent--no, make that sensational--laugh. Do you see how the guy slides his fingers under her shirt sleeve at the start of the tickling? Yummy.
The only shame of it is that he didn't pursue the tickling with more gusto, or really go after her ribs or belly. Too much shoulder tickling! (He's not one of us.)
Score another one for da man.
dig dug