Villain = superdonk (85/42/3)

This is a lame hand, but it is something that doesnt come up too often, so I was kinda lost.
(doesnt come up often for me because I dont usually get involved in raised pots with K6s)

Poker Room skin
No Limit Holdem Ring game
Blinds: $1/$2
6 players
Converter

Stack sizes:
UTG: $10.15
UTG+1: $166.05
CO: $79.25
Hero: $191.00
SB: $104.35
BB: $205.50

Pre-flop: (6 players) Hero is Button with 6 K
3 folds, Hero raises to $7, SB folds, BB calls.

Flop: 5 6 9 ($15, 2 players)
BB bets $11, Hero calls.

Turn: 7 ($37, 2 players)
BB checks, Hero checks.

River: J ($37, 2 players)
BB bets $13, Hero folds.