How much do I c-bet here? (100NL 6-max)

[stickdude]

This is fairly early on in the session, so no real reads yet.

6 players
Converted at

Stacks:
UTG ($61.20)
Hero ($101.80)
CO ($104.70)
BTN ($44.55)
SB ($16.00)
BB ($145.80)

Pre-flop: ($1.5, 6 players) Hero is UTG 1 [Kd]
UTG calls $1, Hero raises to $4.5, 2 folds, SB calls $4, 1 fold, UTG calls $3.5

Flop: [As][Ac] ($14.5, 3 players)
SB checks, UTG checks, Hero ?????

I never know how much to c-bet in hands like this where I catch part of the flop, but don't have a monster (and someone else very well could). Anyone with an Ace would of course check to me, but isn't folding no matter what I bet; and anyone without an Ace isn't calling any size c-bet. Is this a hand where I'm better off not c-betting at all, and risk someone with air pushing me off the hand on the turn?

[Zuccala]

[Triple B]

[phytopath]

I would normally CB this a standard amount like 9-10, maybe even a little less.

Triple, how often would you not CB this? I am wondering if this is maybe a good hand to not CB, well it would probably be better not to HU and give your opponent chances to try and bluff you off. The only hands that can really catch up here are 2 and 4 outers. I dunno just thinking about common situations like this and what is actually optimal, in terms of winning more.

[Semillon]

[hard2tel]