NL20: Fold KK on riverdonk?

[chinaski]

No-Limit Hold'em, $0.20 BB (5 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

Button ($19.70)
SB ($29.64)
BB ($27.89)
Hero (UTG) ($20)
MP ($21.71)

Preflop: Hero is UTG with :ks, :kc
Hero bets $0.70, MP calls $0.70, 2 folds, BB calls $0.50

Flop: ($2.20) :6h, :3c, :js (3 players)
BB checks, Hero bets $2, 1 fold, BB calls $2

Turn: ($6.20) :3h (2 players)
BB checks, Hero bets $3.40, BB calls $3.40

River: ($13) :8h (2 players)
BB bets $9.75, Hero ?

V: 42/14/2, 216 Hände. F2CB Flop: 40%, F2CB Turn: 0%. Note "likes to float flop with overcards".

Turnbet könnte man wohl grösser machen. Der blufft hier nie am river? --> easy muck?