Self Soothe?

I debated even posting this, because pre-teen Ben may kill me for putting this out there, but I find too cute/random/weird not to.

Ben has gone from always needing to touch some sort of bare skin (my arm, his cheek) when he is tired or getting ready to fall asleep, to now narrowing in on his own nipple.  If he has his binky or a bottle, you can bet money on the fact that his hand will be down (or up) his shirt.  It seriously cracks me up.