Pawing when eating rosehips?

I gave my chinchilla a whole rosehip last night and I noticed while eating he had some sort of pawing motion on the sides of his mouth. He didn't look like in pain (to me) because he continued to chew and finish the rosehip like nothing was bothering him. And he ate normally last night. But I'm still a little concerned because pawing may not a good sign anyway.



He does not paw otherwise while chewing toys, eating hays or pellets, just for rosehips. So I'm thinking do you guys have similar things happen when giving rosehips?