I must admit, after extensive, careful, attentive, intensive and close study of both of the videos, that it is most refreshing to see completely natural breasts moving as nature intended them to move and not like a couple of bags of silicone frozen in place.
I especially like the little shoulder shake she gives at the end of the runway prior to turning around, that, my friends, makes it all worthwhile watching the process.
Here's her website, check out the "portfolio"
http://www.kateupton.com/