Me being a weak nit

This guy was fishy. Definitely calls too much preflop, and doesn't raise much. I have a set but what do you make of his line? I haven't seen him get out of line post flop. Do you still like 3-betting the turn more? It just felt like such a fish with a monster line. Yes I know KQ is a monster to him but still...

$1/$2 No Limit Holdem
5 players
Converted at weaktight.com

Stacks:
UTG girts66 ($409.00)
CO TrustMeToday ($217.05)
BTN fredefup100 ($254.35)
SB Gambl3ri ($208.20)
BB Hero ($442.30)

Pre-flop: ($3, 5 players) Hero is BB :5d: :5c:
2 folds, fredefup100 bets $5, 1 fold, Hero calls $3

Flop: :ks: :qc: :5s: ($11, 2 players)
Hero checks, fredefup100 checks

Turn: :th: ($11, 2 players)
Hero bets $7, fredefup100 bets $20, Hero calls $13

River: :2d: ($51, 2 players)
Hero checks...

Turn is a tough one with enough money behind that I'm not very excited about shipping it in.

I think I play it the same. Maybe donk the river. Meh. If he bets something stupid, I'd raise the river for value.

Because he might overvalue some worse hands, I call the turn and block/value-donk the river. And hopefully he won't push.

As played, you're stuck calling most of his river bets. You are facing a weird range and your hand is good against probably half of it.