KTdd on rivers second pair and I wonder if ALL THREE options are on the table

Blinds $1-$2. I cover both Villains.

HAND: one limp, I raise KdTd to $12 on the Button. SB (stack: $160) and limper (stack: $200) call.

Flop: Jc6c3s (pot: $35, 3-ways ). SB checks, Limper checks, I check (no real back doors to barrel on).

Turn: Jc6c3s 9s (pot: $32, 3-ways)

SB leads for $16. The Limper calls. I call with the gutter and over-card (and designs on stealing if they both check—double-flush-draw board, good chance one or both are drawing).

River: Jc6c3s 9s Th (pot: $80, 3-ways).

SB leads for $26 and has $100 back. The Limper folds.

Well, Title:

CALL: $26 to win $100, and not only am I beating his missed flush draws, but I’m ahead of a few hands that may be looking for thin value (A9/K9, QT, T8)

FOLD: even with the price, no one bluffs the River at $1-$2, and he’s not value-betting worse than top pair into two people.

JAM: I have a King to block the nuts, and his two small post-flop bets would seem to cap him at one-pair hands.

What do we think?