Sorry,  I had to work a double shift yesterday, and I didn't get home until around 10:30. By the time I got home I was already half asleep.

But let me clear something up. There's nothing wrong with Basicwiz's method. it works perfectly fine. I was just trying to point out a subtle difference between the way something like skin reacts to being grasped and the way something more like rubber, clay, or foam does. Water doesn't compress like the others, and our bodies are mostly water. So when you push down on water, it will simply move out of the way, meaning a bulge will form somewhere else. So when someone grasps an arm like basicwiz shows, don't forget to add a slight bulge for the displacement it will cause. To see what I'm talking about simply pinch yourself on the arm.  Now to add the bulge between where the two fingers are pinching, I would probably use the "loosen" brush on that area of skin.

Hope that helps clear things up.