I really hope you don't mind that I did this, and I'll definitely delete the pictures right away from my computer after you see them. And they're set to Private on my Flickr page, so no one else can see them. But since you asked for suggestions, I thought that I could use the pic to test what I had in mind. Again, totally sorry if this was a problem. And I WILL DELETE it real soon.
This was done in Lightroom 3, but with the same functions present in LR2. One thing I did was to reduce Clarity of the picture a little. This softens everything though, and not just skin. But from what I've seen, it seems to affect skin a lot (i.e. a moderate increase in Clarity won't look too good when dealing with portraits, but will have a moderate positive effect on other subjects). Just play with that setting some, and you'll see what I mean.
Also, if you sharpen the picture in the Details tab, be sure to add some Masking. This will basically sharpen the lines of the subject (eyes, eyelashes, hair, etc) but make the skin softer.
As far as working on the cheeks, I used the Brush tool on them. I decreased Saturation and Clarity. But bumped up Brightness a bit.
IMG_0491-Edit-Edit by
Scott Smith (SRisonS), on Flickr