http://youtube.com/watch?v=qTop2gQ3j_0
I couldn't resist including a quote from the longer version of that video (not available on youtube). Tassy gives one of her webcam viewers a little piece of wisdom, saying:
"Boobs look different in different scenes, scenarios, and outfits, and sites, and pictures, and whatever! So, you be like--you all be like drooley and hung up on one set of tits, and you have no idea what they look like in any other position than the one that you've focused on."