Hello,
I can not explain why, but I have played the line which is not typical f0 me.
The opponent is not known.
Your ideas... ?
OnGame Skin, $1 PL Hold'em Cash Game, 5 Players
BTN: $27.45
SB: $136.45
BB: $87.85
Hero (UTG): $125
CO: $106.85
Pre-Flop: K

Q

dealt to Hero (UTG)
CO calls $1, BTN calls $1, SB calls $1, BB checks, Hero checks
Flop: ($5) 7

J

T

(5 Players)
BB checks,
Hero bets $4, 2 folds, SB calls $4, BB folds
Turn: ($13) 7

J

T
[ Q
] (2 Players)
Hero checks,
SB bets $9, Hero calls $9
River: ($31) 7

J

T

Q
[ 9
] (2 Players)
Hero checks,
SB bets $30, Hero ???