Teeth!

My worst nightmare has come true...ok, so not my worst nightmare...but a scary thing has happened. My little biter has had a tooth emerge! Nursing is going to become a very scary thing. Weston has started a nice bonding event for mother and son during nursing.
As he nurses, he will look up at me, smile and then CRUNCH! ok, not really crunch, more like PINCH! SQUEEZE! IF I COULD I WOULD BITE IT OFF! more like that. If my milk sac's crunched we might have an issue, but yes, my son thinks its fun to bite me. Every time he does it, I yelp a little then tell him, "No Bite!" firmly and if he continues I then flick his little cheek.
Now that he has a tooth, I have a feeling it is going to become more painful. Oh boy! I am excited for this phase in his life but I am nervous...why little man, WHY?
if the squirt will let me get a picture of his tooth, I will but he's not very helpful with that yet.
any suggestions would be helpful!