What Is Going On?

So this ad is on Tv all the time. Its one of those Match.com "its okay to look ads" that just have like ten seconds of a person doing something that defines them as a person. I dunno, I guess it's a decent premise for a dating site ad campaign. Its not amazing but its not terrible either.
But then there is this one.
Its of a woman lying on a bench (or a piano, lets imagine piano) and giggling for no good reason and that's it. And I can't for the life of me figure out A) why would a girl giggling make me want to go on a dating site? 2)How does this define her as a date able person? and c) What on earth is going on off frame to make her giggle?
And then I figured it out.
Oral Sex.

I'm totally right.