On Sunday Henry bonked his head on our dining room table and after thoughtfully rubbing it for a few seconds, he looked at me and said "Mommy kiss" and shoved his head towards my face. So I gave him a kiss on his head. And then I devoured him because it was so cute.
The next day he bonked his head again, I have no idea on what because I wasn't in the room at the time because I may have been checking my email instead of watching my kid. What, like you haven't ever done that? Henry shuffled in whilst rubbing his head. I looked at him in a way that I'm sure would be best described as "hopeful puppy dog" and sure enough he said "Mommy kiss!" then once again he shoved his head in the general direction of my face.
For two years my kid has been actively and successfully fending off kisses and suddenly he's going out of his way to ask for them, sometimes without the excuse of an injury.
Life is good.