My kitten's paw seems to be hurt.

My cousin came to me and told me that my cat Thor kept lifting her paw like it was hurt, and told me she was limping. She put Thor down and I saw for myself that she was limping. She would take a few steps, limping, and when she stopped walking, she would lift her paw up.

So I put her down on my lap and I looked at her paw. She wouldn't let me do much, but it didn't look bad.
Then my cousin told me that there was a wasp or some type of stinging bug outside on the porch, and that Thor smacked it with her right paw. So could Thor have been stung? Thanks  

Yes it's possible that your kitty could've gotten stung.  He also could've landed wrong if jumping.
 

Its a good possibility she was stung. I would watch to make sure she does not have any allergic reaction to the bug sting.