Dexter is ALWAYS hungry!!

Our Kitten Dexter always wants to eat, and he will eat everything as long as I keep filling his bowl. He is about 2 1/2 months old and I am not sure if I am just under feeding him or what. He will just keep eating.

We feed him IAMS kitten food. Should I be feeding him more or is he just being a little piggy?

The one thing I would check into is making sure he's free of any intestinal parasites. If the vet hasn't done one yet, I would have them do a fecal to make sure.
If all is clear with the vet check, it could be that he's a kitten and they use so much energy running around and playing, that they need to eat to keep up. With kittens, I would just keep a bowl of dry food out at all times.

I agree with Sandie.