Thanks for the comments everyone.
I'm embarrased to say, leahman, that I didn't notice the absence of shadows until you mentioned it. I had some technical bugs with
Poser while making this scene, and I forgot to redo the shadow settings.
The main source of light in the scene is coming from a lamp on the far right (the little pink triangle is part of the lampshade), meaning that
Posette (and her beverages) should indeed be casting a shadow over the couch
I brought up the directory of all the smiley icons and I think
Posy is saying she's concerned about the welfare of her fellow member from the
Posette sisterhood, and is telling the poor girl to find a hiding spot. That's good advice
Posy, but unfortunately I think it's too late for the other girl unless she just happens to keep a .45 pistol with silver bullets under the couch cushion...on second thought though Whazizname has a good point about the cola, that stuff is pretty much industrial strength acid.