[Forbillz]

I actually would be into the raiser on the flop. First of all, you may have the best hand. Most people's 3-bet range include AK, JJ, even 10-10. Combined, there are more ways to make those hands than AA, KK. Granted, 10-10 has caught you here, but...

The other reason is that it will likely protect your hand. I'd expect that the PFR will raise you here. You'll often get UTG to fold facing 2-cold. If not, you have a better sense for the strength of his hand.

Considering your line, I think I call through. The raiser could be on a set, but could also be A10 or flush draw.

I think I call down.