Because, she has to push her chest out to get it done. If she has huge knockers it will be nothing but boobage hanging all out there for ya to gawk at. My cousin does a great job working that move. Get's her free sh*t all the time. : /
Really? I didn't know that would be a turn on...I'm horrible at trying to look "hot"...but I will try this...as I have hair down to my waist...so do you mean actually putting it into a ponytail...or just when she plays with it?
i got used to seeing it right before a girl was about to go down on me. I always thought that was why I found it hot, but if it's more universal than that, maybe not. Perhaps it's like she is 'undressing' her neck or something?
I could be wrong but I believe it has the same effect as when men arch out there chest and shoulders, to show off to women. When women do this, their breasts are protruded outward a little more and so is her shoulders. Something about the way they do this, can be very appealing, to both genders