100nl, KK on Ace high flop two hands

[pokerfan]

this shit happened to me twice during a very short session. Assuming that i played my hand this way, what else can i do but puke on the river ? Should i bet much more on the flop or check behind instead vs these types of villains?

hand 1: villain is 47.5/27.1/12 over 57 hands, likely a donk.
PokerStars No-Limit Hold'em, $1.00 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)
UTG ($20.50)
UTG+1 ($98.50)
MP1 ($105.20)
MP2 ($100)
Hero ($100.15)
CO ($80.55)
Button ($193.30)
SB ($73.10)
BB ($121.60)

Preflop: Hero is MP3 with , .
2 folds, MP1 calls $1, MP2 calls $1, Hero raises to $6, 2 folds, SB calls $5.50, 1 fold, MP1 folds, MP2 folds.

Flop: ($15) , , (2 players)
SB checks, Hero bets $8, SB calls $8.

Turn: ($31) (2 players)
SB checks, Hero checks.

River: ($31) (2 players)
SB bets $20, Hero ?

hand 2: villain is 45/0/0.3 over 25 hands, unknown.
PokerStars No-Limit Hold'em, $1.00 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 ($98)
MP1 ($81.65)
MP2 ($94.70)
MP3 ($93.90)
CO ($98.50)
Button ($98.50)
SB ($27.45)
BB ($41.40)
Hero ($160.75)

Preflop: Hero is UTG with K, K.
Hero raises to $4, 6 folds, SB calls $3.50, 1 fold.

Flop: ($9) 4, J, A (2 players)
SB checks, Hero bets $5, SB calls $5.

Turn: ($19) T (2 players)
SB bets $10, Hero calls $10.

River: ($39) 9 (2 players)
SB checks, Hero checks.

Final Pot: $39

[dev]

no stats on the first guy?
We just don't beat anything here, but the river could be like a KQ or small pair that stuck around on the flop because he thought you were c-betting. It takes a read. As it stands a fold looks pretty good, this is a flush, 2p, set, or weak ace a lot of the time.

The second hand looks good.

[pokerfan]

hand 1: his stat is 47.5/27.1/12 over 57 hands, more than likely a loose donk. my real question in these two hands is whether i should c-bet more on Ace high flush drawing flop like 2/3 pot? If we are playing against tigh nitty players, i believe that checking behind on this flop might give us more value, right?

no stats on the first guy?
We just don't beat anything here, but the river could be like a KQ or small pair that stuck around on the flop because he thought you were c-betting. It takes a read. As it stands a fold looks pretty good, this is a flush, 2p, set, or weak ace a lot of the time.

The second hand looks good.

[jimmy44]

I think you should stop c-betting A high flops as you'll most be called only by better. Instead, try to check and as in hand 1 wait for villain to bet turn and take a stab on the pot knowing he is very aggro. You'll get more value out of your KK this way.

[XTR1000]

bet turn in hand 1, as played fold river

#2 is fine