Party 3/6 6 max: Against a TAG

[zram21]

A buddy of mine and I were debating this play earlier. Assume UTG and Button are both solid tight aggressive players. They play equally well as each other both pre and post flop. The SB in this hand was a very losse passive player and the BB was another TAG.

Party Poker 3/6 6max 5 handed.

Preflop: Button has 6 [img]/images/graemlins/spade.gif[/img], 6 [img]/images/graemlins/diamond.gif[/img]
UTG raises, CO folds, Button...

What is your immediate action and what is your plan for the rest of the hand?