KK against donkbettor on scary board - What shall I do?

Opposition is 44/6/1 over 400 hands. He is not a winning player but he is not an aggressive player either. His donkbet had me worried. Usually I raise this flop but the board looked too scary. What is my correct line here?

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.25/$0.50
6 players
Converter

Stack sizes:
Hero: $61.75
UTG+1: $69.20
CO: $48.50
Button: $15.80
SB: $63.75
BB: $19.30

Pre-flop: (6 players) Hero is UTG with :kc: :kd:
Hero raises to $2, 3 folds, SB calls, BB folds.

Flop: :9c: :qd: :tc: ($4.5, 2 players)
SB bets $3.5, Hero calls.

Turn: :8c: ($11.5, 2 players)
SB bets $5, Hero calls.

River: :8d: ($21.5, 2 players)
SB bets $4, Hero calls.

Results:
Final pot: $29.5

If you haven't seen any aggression from someone I think this is a good safe line if you want to get to showdown. I never know what to make of weak bets from players on this site.

Here I am in the same spot as you. Not as dangerous as a board but I hadn't seen this guy lead or make a single big bet since I sat down. TBH he was so weak/passive I kinda regret not folding the turn, but that woulda been too gay.

Texas Hold'em $1-$1 NL (Real Money), #97,511,887
Table Bandung, 23 Mar 2007 10:01 PM ET



Seat 3: Galapogos [ A:h:, A:s:] ($142.05 in chips)
Seat 5: KingAce45 ($33.40 in chips)
Seat 6: river_dance1 ($100.90 in chips)
Seat 8: dirtbaagg ($240.15 in chips)
Seat 10: freddexx ($46.65 in chips)

Antes/Blinds
dirtbaagg posts blind ($0.50), freddexx posts blind ($1).

Pre-Flop
Galapogos bets $4, KingAce45 folds, river_dance1 calls $4, dirtbaagg calls $3.50, freddexx folds.

Flop [board cards 8:s:,J:c:,Q:h: ]
dirtbaagg bets $8, Galapogos calls $8, river_dance1 folds.

Turn [board cards 8:s:,J:c:,Q:h:,5:c: ]
dirtbaagg bets $15, Galapogos calls $15.

River [board cards 8:s:,J:c:,Q:h:,5:c:,6:h: ]
dirtbaagg bets $10, Galapogos calls $10.

SHOWDOWN
dirtbaagg shows [ JS,JH ]
Galapogos mucks cards [ AH,AS ]

You played this fine. Raising the flop is the only thing you could do differently but calling is ok too. If you raise tho ur probably only getting action from hands that already have you beat or big draws.
nh

Yea I raise flop, but this is ok i guess