Probably not the best spot to bluff.

I can't find the exact hand history, but I'm pretty sure I got this right:
Full ring 5NL.

Button (hero) AK 9$
BB 4$
UTG2 2$

UTG limps
UTG2 raises to 30c
Everyone folds to me
I make it 1.3 to go hoping UTG will 3-bet, since I'm going to put him all-in on the flop no matter what.
BB calls
UTG2 calls
flop comes 5h4d7d

BB checks, UTG2 checks.
I make it 2$ because I figure an overpair would have bet here, and I can't really put them on 67, A5d... I guess a flush draw would bet here also.
BB has been playing solid. UTG just sat down - first or second hand.

BB moves all-in for 1.something more, UTG folds, and I call thinking I'm getting the right odds against a flushdraw or 66. Certainly a set is a possibility.
Probably not the best spot to c-bet. But I'm not really sure.

I can't believe nobody got an opinion on this!

HU I would c-bet this I think. Multi-way I'd take a free card and give up if one of the bets turn and I havnt improved.